A. General Notes

A1. Design Specifications, Loadings & Unit Stresses

Omit parts not applicable; Omit parts underlined when not applicable. The format for these notes as they would appear on the plans is as follows with the indention shown being optional. For notes applicable to MSE walls see J. MSE Wall Notes.

General Notes:

Design Specifications:

A1.1

Design Loading:

A1.2

Design Unit Stresses:

A1.3

(A1.1) Design Specifications:

Use for all LRFD standard culverts and standard culverts-bridge designs in which the design and/or details are completely covered by the Missouri Standard Plans for Highway Construction and/or EPG 751.8 in accordance with the following design specifications.

Note: Any new construction using structural steels A514 or A517 requires permission of the State Bridge Engineer. Any construction involving these structural steels requires notification to the State Bridge Engineer.

When alternate precast concrete box culvert sections are used, the minimum distance from inside face of headwalls to precast sections measured along the shortest wall shall be 3 feet. Reinforcement and dimensions for wings and headwalls shall be in accordance with Missouri Standard Plans.

Culverts on Rock Where Holes or Crevices may be Found(Normally where soundings show rock to be very irregular)

(A2.3) (The designer should check with Structural Project Manager before placing this note on the plans.)

Where, under short lengths of walls, top of rock is below elevations given for bottom of walls, plain concrete footings 3 feet in width shall be poured up from rock to bottom of walls. If top of rock is more than 3 feet below bottom of short wall sections, the walls between points of support on rock, shall be designed and reinforced as beams and spaces below walls filled as directed by the engineer. Payment for plain concrete footings and concrete reinforced as wall beams will be considered completely covered by the contract unit price for Class B-1 Concrete.

Box Type Structures on Rock or Shale Widened or Extended with Floor

(A2.4)

Fill material under the slab shall be firmly tamped before the slab is poured.

For Box Culverts where collar is provided, place the following note on plan sheet.

(A2.8)

If precast option is used, collars shall be provided between all precast pieces.

For Box Culverts with transverse joint(s), place notes A2.9 and A2.10 under the Transverse Joint Detail. [MS Cell] The detail and these notes are not needed if an appropriate standard plan is referenced.

(A2.9)

Filter cloth 3 feet in width and double thickness shall be centered on transverse joints in top slab and sidewalls with edges sealed with mastic or two sided tape. Filter cloth shall be a subsurface drainage geotextile in accordance with Sec 1011. Cost of furnishing and installing filter cloth will be considered completely covered by the contract unit price for other items.

(A3.6) Use when mechanical bar splices (MBS) are to be specified on the plans. The underlined portion shall be used when mechanical bar splice is not being paid for with pay item 706-10.70.

MBS refers to mechanical bar splices. Mechanical bar splices shall be in accordance with Sec 706 or 710 except that no measurement will be made for mechanical bar splices and they will be considered completely covered by the contract unit price for other items.

Vertical clearance for Route traffic during construction shall be minimum over a wide horizontal opening of the roadway in each direction.

(A3.8) Use for bridges and culverts.

Structure to be closed during construction.Traffic to be maintained on (1) during construction. See roadway plans for traffic control and Sheet No. __ for staged construction details.

(1)

Use “structure” with staged rehabilitation of existing structures.

Use “existing structure” with new structures built next to existing structures.

Use “structures” with staged replacement of existing structures.

Use “temporary bypass” when a bypass will be constructed.

Use “other routes” with new routes and with existing routes that are closed to traffic.

A4. Protective Coatings

A4a. Structural Steel Protective Coatings

In "General Notes:" section of plans, place the following notes under the heading "Structural Steel Protective Coatings:".

A4a1. Steel Structures- Nonweathering Steel

Coating New Steel (Notes A4a1.1 – A4a1.7)

(A4a1.1)

Protective Coating: System GI in accordance with Sec 1081.

(A4a1.2)

Prime Coat: The cost of the prime coat will be considered completely covered by the contract unit price for the fabricated structural steel. Tint of the prime coat for System GI shall be similar to the color of the field coat to be used.

(A4a1.3) The coating color shall be as specified on the Design Layout. When System I is specified, omit the 2nd sentence.

Field Coat(s): The color of the field coat(s) shall be Gray (Federal Standard #26373)Brown (Federal Standard #30045)Black (Federal Standard #17038)Dark Blue (Federal Standard #25052)Bright Blue (Federal Standard #25095). The cost of the intermediate field coat will be considered completely covered by the contract lump sumunit price per sq. foot for "Intermediate Field Coat (System G)". The cost of the finish field coat will be considered completely covered by the contract lump sumunit price per sq. foot for "Finish Field Coat (System G)""Finish Field Coat (System I)".

(A4a1.4) When System I is specified and if finish coat only is required, omit the underlined part.

At the option of the contractor, the intermediate field coat and finish field coat may be applied in the shop. The contractor shall exercise extreme care during all phases of loading, hauling, handling, erection and pouring of the slab to minimize damage and shall be fully responsible for all repairs and cleaning of the coating systems as required by the engineer.

(A4a1.5) Use for structures with Access Doors

Structural steel access doors shall be cleaned and coated in the shop or field with at least two coats of inorganic zinc primer to provide a minimum dry film thickness of 5 mils. In lieu of coating, the access doors may be galvanized in accordance with ASTM A123 and A153. The cost of coating or galvanizing doors will be considered completely covered by the contract unit price for other items.

(A4a1.6) Use for structures with Access Doors and when a fabricated structural steel pay item is not included.

Payment for furnishing, coating or galvanizing and installing access doors and frames will be considered completely covered by the contract unit price for other items.

(A4a1.7)

System I finish coat shall be substituted for System G intermediate coat in Sec 1081.3.3.1.4.

Surface Preparation: Surface preparation of the existing steel shall be in accordance with Sec 1081 for "Recoating of Structural Steel (System G, H or I)". The cost of surface preparation will be considered completely covered by the contract lump sumunit price per sq. foot for "Surface Preparation for Recoating Structural Steel".

(A4a1.12)

Prime Coat: The cost of the prime coat will be considered completely covered by the contract lump sumunit price per sq. foot for “Field Application of Inorganic Zinc Primer". Tint of the prime coat for System GI shall be similar to the color of the field coat to be used.

(A4a.3) The coating color shall be as specified on the Design Layout. When System I is specified, omit the 2nd sentence.

Field Coat(s): The color of the field coat(s) shall be Gray (Federal Standard #26373)Brown (Federal Standard #30045)Black (Federal Standard #17038)Dark Blue (Federal Standard #25052)Bright Blue (Federal Standard #25095). The cost of the intermediate field coat will be considered completely covered by the contract lump sumunit price per sq. foot for "Intermediate Field Coat (System G)". The cost of the finish field coat will be considered completely covered by the contract lump sumunit price per sq. foot for "Finish Field Coat (System G)""Finish Field Coat (System I)".

(A4a1.13) Use for recoating truss bridges.

The length of span that is permissible to drape is to be determined by the designer and given in the note. Typically, ¼ span length is used but greater lengths have been used in the past based on calculations. See Structural Project Manager or Structural Liaison Engineer.

For the duration of cleaning and recoating the truss spans, the truss span superstructure in any span shall not be draped with an impermeable surface subject to wind loads for a length any longer than 1/4 the span length at any one time regardless of height of coverage. Simultaneous work in adjacent spans is permissible using the specified limits in each span.

Overcoating Existing Steel (Notes A4a1.21 – A4a1.27)

(A4a1.21)

Protective Coating: Calcium Sulfonate System in accordance with Sec 1081.

Surface Preparation: Surface preparation of the existing steel shall be in accordance with Sec 1081 for "Overcoating of Structural Steel (Calcium Sulfonate System)". The cost of surface preparation will be considered completely covered by the contract lump sumunit price per sq. foot for "Surface Preparation for Overcoating Structural Steel".

(A4a1.22)

Rust Penetrating Sealer: The rust penetrating sealer shall be applied to the surfaces of all bearings, overlapping steel plates, pin connections, pin and hanger connections and other locations where rust bleeding, pack rust and layered rust is occurring. The cost of the rust penetrating sealer will be considered completely covered by the contract lump sum price for "Calcium Sulfonate Rust Penetrating Sealer".

(A4a1.23) Use when a prime coat is not required.

Prime Coat: Prime coat shall not be required.

(A4a1.24) Use when prime coat is noted on the Bridge Memorandum as required.

Prime Coat: The cost of the prime coat will be considered completely covered by the contract lump sumunit price per sq. foottons for "Calcium Sulfonate Primer".

(A4a1.25)

Topcoat: The color of the topcoat shall be Gray (Federal Standard #26373)Brown (Federal Standard #30045)Tan (Federal Standard #23522)Green (Federal Standard #24260). The cost of the topcoat will be considered completely covered by the contract unit price per sq. foottons for "Calcium Sulfonate Topcoat".

(A4a1.26) Use when two different new coating systems are used. Show detail on plans.

Limits of Paint Overlap: The Calcium Sulfonate System shall overlap the System G epoxy intermediate field coating between 6 inches and 12 inches in order to achieve maximum coverage at the paint limit of each complete system near the expansion and contraction areas. The final field coating shall be masked to provide crisp, straight lines and to prevent overspray beyond the overlap required.

(A4a1.27) Use when new coating system overlaps existing coating system. Show detail on plans.

Limits of Paint Overlap: System G shall overlap the existing coating between 6 inches and 12 inches in order to achieve maximum coverage at the paint limit of each complete system near the expansion and contraction areas. The final field coating shall be masked to provide crisp, straight lines and to prevent overspray beyond the overlap required.

A4a2. Steel Structures- Weathering Steel

Coating New Steel (Notes A4a2.1 - A4a2.3)

(A4a2.1)

Protective Coating: System H in accordance with Sec 1080.

(A4a2.2)

Field Coats: The color of the field coats shall be Brown (Federal Standard #30045). The cost of the intermediate and finish field coats will be considered completely covered by the contract unit price for the fabricated structural steel.

(A4a2.3)

At the option of the contractor, the intermediate and finish field coats may be applied in the shop. The contractor shall exercise extreme care during all phases of loading, hauling, handling, erection and pouring of the slab to minimize damage and shall be fully responsible for all repairs and cleaning of the coating systems as required by the engineer.

Recoating Existing Steel (Notes A4a2.1, A4a2.11 – A4a2.13)

(A4a2.1)

Protective Coating: System H in accordance with Sec 1080.

(A4a2.11)

Surface Preparation: Surface preparation of the existing steel shall be in accordance with Sec 1080 and Sec 1081 for "Recoating of Structural Steel (System G, H or I)". The cost of surface preparation will be considered completely covered by the contract lump sumunit price per sq. foot for "Surface Preparation for Recoating Structural Steel".

(A4a2.12)

Prime Coat: The cost of the prime coat will be considered completely covered by the contract lump sumunit price per sq. foot for “Field Application of Inorganic Zinc Primer". Tint of the prime coat for System H shall be similar to the color of the field coat to be used.

(A4a2.13) Use same note A4.3 (repeated here for completeness) for existing steel as for new steel. The coating color shall be as specified on the Design Layout.

Field Coats: The color of the field coats shall be Brown (Federal Standard #30045). The cost of the intermediate field coat will be considered completely covered by the contract lump sumunit price per sq. foot for "Intermediate Field Coat (System H)". The cost of the finish field coat will be considered completely covered by the contract lump sumunit price per sq. foot for "Finish Field Coat (System H)".

A4a3. Miscellaneous

(A4a3.1) Use for weathering steel or concrete structures with girder chairs and when a coating pay item is not included.

Structural steel for the girderbeam chairs shall be coated with not less than 2 mils of inorganic zinc primer. Scratched or damaged surfaces are to be touched up in the field before concrete is poured. In lieu of coating, the girderbeam chairs may be galvanized in accordance with ASTM A123. The cost of coating or galvanizing the girderbeam chairs will be considered completely covered by the contract unit price for other items.

(A4a3.2) Use when recoating existing exposed piles. (Guidance: "Aluminum" is preferred because it acts as both a barrier and corrosion protection where "Gray" only acts as a barrier. If for any reason coated pile is embedded in fresh concrete, "Aluminum" shall not be used.)

All exposed surfaces of the existing structural steel piles and sway bracing shall be recoated with one 6-mil thickness of aluminumgray epoxy-mastic primer applied over an SSPC-SP3 surface preparation in accordance with Sec 1081. The bituminous coating shall be applied one foot above and below the existing ground line and in accordance with Sec 702. These protective coatings will not be required below the normal low water line. The cost of surface preparation will be considered completely covered by the contract lump sum price for Surface Preparation for Applying Epoxy-Mastic Primer. The cost of the aluminumgray epoxy-mastic primer and bituminous coating will be considered completely covered by the contract lump sum price for AluminumGray Epoxy-Mastic Primer.

A4b. Concrete Protective Coatings

A4b1. Concrete Protective Coatings

In "General Notes:" section of plans, place the following notes under the heading "Concrete Protective Coatings:".

(A4b1.1) Use note with weathering steel structures.

Temporary coating for concrete bents and piers (weathering steel) shall be applied on all concrete surfaces above the ground line or low water elevation on all abutments and intermediate bents in accordance with Sec 711.

(A4b1.2) Use note with coating for concrete bents and piers either urethane or epoxy.

Protective coating for concrete bents and piers (Urethane)(Epoxy) shall be applied as shown on the bridge plans and in accordance with Sec 711.

(A4b1.3) Use note when specified on Design Layout.

Concrete and masonry protective coating shall be applied on all exposed concrete and stone areas in accordance with Sec 711.

(A4b1.4) Use note when specified on Design Layout.

Sacrificial graffiti protective coating shall be applied on all exposed concrete and stone areas in accordance with Sec 711.

A5. Miscellaneous

In "General Notes:" section of plans, place the following notes under the heading "Miscellaneous:".

(A5.3) Use the following note on all jobs with high strength bolts.

High strength bolts, nuts and washers will be sampled for quality assurance as specified in Sec 106.

(A5.4) Use the following note for structures having detached wing walls at end bents.

Payment for furnishing all materials, labor and excavation necessary to construct the Lt.Rt.both detached wing walls at End Bents No. andNo. including the Class Excavation, Pile, (1), Class BB-1 Concrete (Substr.) (2) and Reinforcing Steel (Bridges), will be considered completely covered by the contract unit price for these items.

(1)

List all items used for the detached wing walls.

(2)

For continuous concrete slab bridges, the detached wing walls could be either Class B or Class B-1. (For slab bridges with Class B spread footings, the detached wing walls might as well be Class B, otherwise, Class B-1 may be used.) Check with Project Manager.

(A5.6) [MS Cell] Use the following note on all Concrete Superstructures where Precast Panels are used.

MoDOT Construction personnel will indicate the type of joint filler option used under the precast panels for this structure:

All concrete between the upper and lower construction joints in the end bents (except detached wing walls) is included in the Estimated Quantities for Slab on Steel.

(B1.4) (Use on concrete structures only.)

All concrete above the construction joint in the end bents (except detached wing walls) is included in the Estimated Quantities for Slab on Concrete I-GirderSlab on Concrete Bulb-Tee GirderSlab on Concrete NU-GirderSlab on Concrete BeamReinforced Concrete Slab Overlay.

(B1.5)

All reinforcement in the end bents (except detached wing walls)and all reinforcement in cast-in-place pile at end bents is included in the Estimated Quantities for Slab on SteelSlab on Concrete I-GirderSlab on Concrete Bulb-Tee GirderSlab on Concrete NU-GirderSlab on Concrete BeamReinforced Concrete Slab Overlay.

Intermediate Bents with Concrete Diaphragms

(B1.5.1)

All reinforcement in the intermediate bent concrete diaphragms except reinforcement embedded in the beam cap is included in the Estimated Quantities for Slab on Concrete I-GirderSlab on Concrete Bulb-Tee GirderSlab on Concrete NU-GirderSlab on Concrete BeamReinforced Concrete Slab Overlay.

(B1.5.2)

All concrete above the intermediate beam cap is included in the Estimated Quantities for Slab on Concrete I-GirderSlab on Concrete Bulb-Tee GirderSlab on Concrete NU-GirderSlab on Concrete BeamReinforced Concrete Slab Overlay.

Non-Integral End Bents with Concrete Diaphragms

(B1.5.3)

All reinforcement in the concrete diaphragm at the end bents is included in the Estimated Quantities for Slab on Concrete I-GirderSlab on Concrete Bulb-Tee GirderSlab on Concrete NU-GirderSlab on Concrete BeamReinforced Concrete Slab Overlay.

(B1.5.4)

All concrete in the concrete diaphragm at the end bents is included in the Estimated Quantities for Slab on Concrete I-GirderSlab on Concrete Bulb-Tee GirderSlab on Concrete NU-GirderSlab on Concrete BeamReinforced Concrete Slab Overlay.

Semi-Deep Abutments

(B1.6)

All concrete and reinforcing steel below top of slab and above construction joint in Semi-Deep Abutments is included in the Estimated Quantities for Slab on Semi-Deep Abutment.

End Bents with Expansion Device

(B1.7)

Concrete above the upper construction joint in backwall at End Bents No. is included with Class B-2 Concrete (Slab on ) Quantities.

Sidewalk

(B1.8)

All concrete and reinforcing steel in sidewalk will be considered completely covered by the contract unit price for Sidewalk (Bridges).

Continuous Concrete Slab Bridge (Notes B1.9.1 thru B1.9.6)

End Bents

(B1.9.1)

All concrete above the construction joint in the end bents (except detached wing walls) is included with the Superstructure Quantities.

(B1.9.2)

All reinforcement in the end bents (except detached wing walls) is included with the Superstructure Quantities.

Intermediate Column Bents integral with slab

(B1.9.3)

All concrete above construction joint between slab and columns in the intermediate bents is included with Superstructure Quantities.

(B1.9.4)

All reinforcement in the intermediate bent columns is included with Superstructure Quantities.

Intermediate Pile Cap Bents integral with slab

(B1.9.5)

All concrete in the intermediate bent caps is included with Superstructure Quantities.

(B1.9.6)

All reinforcement in the intermediate bent caps is included with Superstructure Quantities.

B1b. Excavation, Sway Bracing

(B1.10) Use when total estimated excavation is less than 10 cubic yards (No "excavation" item in the Estimated Quantities).

Cost of any required excavation for bridge will be considered completely covered by the contract unit price for other items.

Retaining Walls

(B1.11)

No Class 1 Excavation will be paid for above lower limits of roadway excavation.

Concrete Structures Having Sway Bracing on Load Bearing Piles

(B1.12)

The cost of furnishing and installing steel sway bracing on piles at the intermediate bents will be considered completely covered by the contract unit price for Fabricated Structural Carbon Steel (Misc.).

Note to Detailer:For structures having steel sway bracing on piles, the weight of the bracing shall be shown under the substructure quantities.

(B1.13)

Cost of cleaning and coating of bracing at intermediate bents will be considered completely covered by the contract unit price for other items.

In special cases, entries are made to the quantities table by the Construction after plans are completed. When notes are placed too close to the bottom of this table, additional quantities cannot be entered efficiently. The request has been made that space be left for at least four (4) additional entries to the table before notes are placed on the plans.

(B3.5) Use for CIP pile in all bridges except for continuous concrete slab bridges.

All reinforcement in cast-in-place pile at non-integral end bentsandintermediate bents is included in the substructure quantities.

(B3.6) Use for CIP pile in continuous concrete slab bridges.

All reinforcement in cast-in-place pile at end bents andpile cap intermediate bents is included in the superstructure quantities and all reinforcement in cast-in-place pile at open concrete intermediates bents is included in the substructure quantities.

Place an next to the transverse diamond grooving in the quantity box and add the following note under the estimated quantities box.

(B3.7)

MoDOT will allow, at the contractor's discretion, longitudinal or transverse diamond grooving of the surface of the concrete bridge deck.

B3b. Box Culverts

Estimated Quantities Table for Box Culverts

The quantities table on box culvert plans should show an extra column to the right in the table that is labeled "Final Quantities". Estimated quantities should be inserted to the left of this column in the usual manner by the detailer as shown in the example below.

The four extra spaces at the bottom of the table are not required as specified before.

(B3.11) [MS Cell]

Estimated Quantities

Final Quantities

Class 4 Excavation

cu. yard

Class B-1 Concrete(Culverts-Bridge)*

cu. yard

Reinforcing Steel (Culverts- Bridge)*

pound

Note to Detailer:

If distance from stream face of exterior wall to exterior wall is 20' then should use (Culverts-Bridge) but if 20' should use (Culverts).

The following table is to be placed on the design plans under the table of estimated quantities.

Use separate tables for multiple types of slabs on a structure.

(B3.21) [MS Cell] Table of Slab Quantities

Estimated Quantities for

Item

Total

Class B-2 Concrete

cu. yard

Reinforcing Steel (Epoxy Coated)

pound

Fill in the blank above and in note below with "Slab on Steel", "Slab on Concrete I-Girder", "Slab on Concrete Bulb-Tee Girder", "Slab on Concrete NU-Girder", "Slab on Semi-Deep Abutment", "Slab on Concrete Beam" or "Reinforced Concrete Slab Overlay".

"Reinforced Concrete Slab Overlay" shall be used with double-tee girders and when specified on the Design Layout for solid slab beams, adjacent voided slab beams and adjacent box beams.

(B3.22)

The table of Estimated Quantities for represents the quantities used by the State in preparing the cost estimate for concrete slabs. The area of the concrete slab will be measured to the nearest square yard longitudinally from end of slab to end of slab and transversely from out to out of bridge slab (or with the horizontal dimensions as shown on the plan of slab). Payment for prestressed panels,stay-in-place corrugated steel forms, conventional forms, all concrete and epoxy coated reinforcing steel will be considered completely covered by the contract unit price for the slab. Variations may be encountered in the estimated quantities but the variations cannot be used for an adjustment in the contract unit price.

(B3.23)

Method of forming the slabs shall be as shown on the plans and in accordance with Sec 703. All hardware for forming the slab to be left in place as a permanent part of the structure shall be coated in accordance with ASTM A123 or ASTM B633 with a thickness class SC 4 and a finish type I, II or III.

(B3.24) Use note for optional forming.

Slab shall be cast-in-place with conventional forms or stay-in-place corrugated steel forms. Precast prestressed panels will not be permitted.

Corrugations of stay-in-place forms shall be filled with an expanded polystyrene material. The polystyrene material shall be placed in the forms with an adhesive in accordance with the manufacturer's recommendations.

(B3.32)

Form sheets shall not rest directly on the top of girderbeamor floorbeam flanges. Sheets shall be securely fastened to form supports with a minimum bearing length of one inch on each end. Form supports shall be placed in direct contact with the flange. Welding on or drilling holes in the girderbeamor floorbeam flanges will not be permitted. All steel fabrication and construction shall be in accordance with Sec 1080 and 712. Certified field welders will not be required for welding of the form supports.

(B3.33) Use “4 psf” for form spans up to 10 feet beyond which a greater dead loading for form spans may need to be considered and used.

The design of stay-in-place corrugated steel forms is per manufacturer which shall be in accordance with Sec 703 for false work and forms. Maximum actual weight of corrugated steel forms allowed shall be 4 psf assumed for girderbeam loading.

(B3.34) Use this temporary note until further notice when more is learned about what contractor’s methods are proposed and approved by the engineer.

The contractor shall provide a method of preventing the direct contact of the stay-in-place forms and connection components with uncoated weathering steel members that is approved by the engineer.

Precast Prestressed Panels:

(B3.40) Use for skewed structures.

The Estimated Quantities for Slab on SteelConcrete I-GirderConcrete Bulb-Tee GirderConcrete NU-GirderConcrete Beam are based on skewed precast prestressed end panels.

(B3.41) Use for concrete structures.

Class B-2 Concrete quantity is based on minimum top flange thickness and minimum joint material thickness.

(B3.42)

The prestressed panel quantities are not included in the table of Estimated Quantities for Slab on SteelConcrete I-GirderConcrete Bulb-Tee GirderConcrete NU-GirderConcrete Beam.

B3d. Asphalt Wearing Surfaces

The following table shall be placed under the Table of Estimated Quantities on the design plans for alternate asphaltic concrete wearing surface.

The "SP" designates a superpave mixture; the "125" indicates the nominal mixture aggregate size is 12.5 mm, "B" or "C" indicates the design level, the "SM" indicates Stone Mastic Asphalt, and the "LP" indicates the mixture contains limestone/porphyry. See the Design Layout for the type of Superpave mixture required.

See the Design Layout for the asphalt binder required.

(B3.53)

The contractor shall select one of the alternate asphaltic concrete wearing surfaces listed in the table. The mixture shall be in accordance with Sec 403 and produced in accordance with Sec 404.

(B3.54)

The area of the asphaltic concrete wearing surface will be measured and computed to the nearest square yard. This area will be measured transversely from out to out of overlay and longitudinally from end of slab to end of slab.

(B3.56)

Payment for alternate Asphaltic Concrete Wearing Surface will be considered completely covered by the contract unit price per square yard.

C. Reinforcing Steel Notes

C1. Bill of Reinforcing Steel

Place the following notes below or near the "Bill of Reinforcing Steel" when appropriate.

(C1.1) Same marks used for unlike bars on different units.

Bars in the above units are to be billed and tagged separately.

(C1.2) Incomplete bill (Or bill for different units placed on different sheets).

See Sheet No. for bill of reinforcing steel for .

BENDING BY CRSI STANDARDS

(C1.3)

All standard hooks and bends other than 180 degree are to be bent with same procedure as for 90 degree standard hooks.

(C1.4)

Hooks and bends shall be in accordance with the procedures as shown on this sheet.

(C1.5)

Nominal lengths are based on out to out dimensions shown in bending diagrams and are listed for fabricators use. (Nearest inch)

(C1.6)

Payweights are based on actual lengths.

(C1.7)

Unless otherwise noted, diameter "D" is the same for all bends and hooks on a bar.

(C1.8)

E = Epoxy coated reinforcement.

(C1.9)

S = Stirrup.

(C1.10)

X = Bar is included in substructure quantities.

(C1.11)

Actual lengths are measured along centerline bar to the nearest inch.

(C1.12)

V = Bar dimensions vary in equal increments between dimensions shown on this line and the following line.

(C1.13)

No. ea. = Number of bars of each length.

(C1.14)

Four angle or channel spacers are required for each column spiral. Spacers are to be placed on inside of spirals. Length and weight of column spirals do not include splices or spacers.

If U1 bars interfere with placement of slab steel, U1 loops may be bent over, as necessary, to clear slab steel.

(C2c.3)

Deformed welded wire reinforcement (WWR) providing a minimum area of reinforcing perpendicular to strands of 0.22 sq in./ft, with spacing parallel to strands sufficient to ensure proper handling, may be used in lieu of the #3-P2 bars shown. Wire diameter shall not be larger than 0.375 inch. The above alternative reinforcement criteria may be used in lieu of the #3-P3 bars, when required, and placed over a width not less than 2 feet.

(C2c.4)

The following reinforcing steel shall be tied securely to the strands with the following maximum spacing in each direction:

#3-P2 bars at 16 inches. 

WWR at 24 inches.

(C2c.5)

The #3-U1 bars shall be tied securely to #3-P2 bars, to WWR or to strands (when placed between P1 bars) at about 3-foot centers.

(C2c.6)

Minimum reinforcement steel length shall be 2'-0".

D. Temporary Bridge Notes

D1. General

Place the following notes on the front sheet.

(D1.1)

Timber:

All timber shall be standard rough sawn. At the contractor's option, timber may be untreated or protected with commercially applied timber preservatives. All timber shall have a minimum strength of 1500 psi and shall be either douglas fir in accordance with paragraph 123B (MC-19), 124B (MC-19) and 130BB of the current edition of Standard Grading Rules for West Coast Lumber, southern pine in accordance with paragraphs 312 (MC-19), 342 (MC-19) and 405.1 of the current edition of Southern Pine Inspection Bureau Grading Rules, or a satisfactory grade of sound native oak.

(D1.2)

Bolts:

All bolts shall be high strength ASTM A325 except as noted.

(D1.3)

Misc:

The superstructure only& cap beam units will be provided by the State and shall be transported from Maintenance Lot. The superstructure shall be returned and stored at the same location as designated by the engineer after Bridge No. is open to traffic.

Shim plates may be used between pile and channel at the end bents or angle at the intermediate bents. Shim plates may vary in thickness from 1/16" to thickness required.

(D1.21) Place near half section of bridge flooring.

Steel bridge flooring shall be Foster 5" RB/8.0 or American Bridge 5" Open I-Beam-Lok Type 8S open steel bridge flooring. Trim bars shall be required at the sides and ends of each 39'-10 1/2" unit.

(D1.22)

Note: Field connections shall be 7/8"ø high strength bolts with holes 1 1/16"ø except as noted.

(D1.23) Place near details of u-bolts lifting device.

U-bolts lifting device shall be on the inside top flange at both ends of each exterior stringer of each unit. U-bolts shall be removed during the time the bridge is open to traffic. Position of the U-bolts may be shifted slightly to miss the bars in the flooring.

E. General Elevation and Plan Notes

E1. Excavation and Fill

Remove Old Roadway Fill Under Structure (When specified on the Design Layout.)

(E1.1)

Old roadway fill under the ends of the bridge shall be removed as shown. Removal of old roadway fill will be considered completely covered by the contract unit price for roadway excavation.

Fill at Pile Cap End Bents (All pile cap end bents)

(E1.4) (*) Applies to Semi-Deep Abutment.

Roadway fill shall be completed to the final roadway section and up to the elevation of the bottom of the concrete approach(*) beam within the limits of the structure and for not less than 25 feet in back of the fill face of the end bents before any piles are driven for any bents falling within the embankment section.

E2. Foundation Data Table

The following table is to be placed on the design plans and filled out as indicated.

(E2.1) [MS Cell] (E2.1) (Example: Use the underlined parts in the bent headings for bridges having detached wing walls at end bents only.)

2 Show maximum of total scour depths estimated for multiple return periods in years from Preliminary design which should be given on the Design Layout. Show the controlling return period (e.g. 100, 200, 500). If return periods are different for different bents, add a new line.

3 For LFD: For bridges in Seismic Performance Categories B, C and D, the design bearing values for load bearing piles given in the table should be the larger of the following two values: 1. Design bearing value for AASHTO group loads I thru VI. 2. Design bearing for seismic loads / 2.0

4 It is possible that min. tip penetration (elev.) can be higher than min. galvanized penetration (elev.).

5 Minimum hammer energy is not required when Dynamic Testing (DT) or Wave Equation Analysis of Piles (WEAP) is specified for pile driving verification method. Requirement of both DT and WEAP methods is that the pile driving system, i.e. hammer energy requirements, be submitted to the engineer for approval before driving.

Additional notes: On the plans, report the following definition(s) just below the foundation data table for the specific method(s) used:

(E2.23) (Use when static test piles are required.) This number of piles in table should not include test piles. If test piles are specified, place an * beside the number of piles at the bents indicated.

*One concrete test pile shall be driven in permanent position, one for each bent, at Bents No. and .

(E2.24) Deleted.

(E2.25) (Use for LFD piling design when Design Bearing is determined from service loads and shown on the plans. This represents converting the Design Bearing to a Minimum Nominal Axial Compressive Resistance, P, for use in the dynamic formula in accordance with Sec 702. Example: Considered only for widenings, repairs and rehabilitations.)

All piling shall be driven to a minimum nominal axial compressive resistance equal to 3.5 times the Design Bearing as shown on the plans.

Drilled Shafts

(E2.29)

Thickness of permanent steel casing shall be as shown on the plans and in accordance with Sec 701.

(E2.30) Note may not be required with drilled shafts for high mast tower lighting.

An additional 4 feet has been added to V-bar lengths and an additional __-#__-P-bars have been added in the quantities, if required, for possible change in drilled shaft or rock socket length. The additional V-bar length shall be cut off or included in the reinforcement lap if not required. The additional P-bars shall be spaced similarly to that shown in elevation, if required, or to a lesser spacing if not required, but not less than 6" cts.

(E2.31) Note not required with drilled shafts for high mast tower lighting.

Sonic logging testing shall be performed on all drilled shafts and rock sockets.

(E2.32) Note to be used only with Drilled Shafts for High Mast Tower Lighting.

Drilling slurry, if used, shall require desanding.

(E2.33) Note to be used only with Drilled Shafts for High Mast Tower Lighting. Drilled shaft diameter is required to be at least 21 in. greater than the largest anticipated anchor bolt circle diameter per the DSP - High Mast Tower Lighting.

(E2.34) Use the following note only when the top of drilled shafts are < = 3'-0" below the ground surface at centerline column / drilled shaft. Otherwise excavation quantity to the top of drilled shafts needs to be figured. Excavation diameter limit will be the 3'-0" larger than the column diameter above the drilled shaft.

The cost of any required excavation to the top of the drilled shafts will be considered completely covered by the contract unit price for other items.

E3. Miscellaneous

(E3.1) Horizontal curves (Bridges not of box culvert type)

All bents are parallel.

Boring Data

(E3.2) [MS Cell] (Place on Front Sheet of the plans when boring data is provided for bridges, retaining walls, MSE walls and any other structure.)

Indicates location of borings.Notice and Disclaimer Regarding Boring Log DataThe locations of all subsurface borings for this structure are shown on the plan sheet(s) for this structure. The boring data for all locations indicated, as well as any other boring logs or other factual records of subsurface data and investigations performed by the department for the design of the project, are shown on Sheet(s) No.___ or will be available from the Project Contact upon written request. No greater significance or weight should be given to the boring data depicted on the plan sheets than is given to the subsurface data available from the district or elsewhere.

The Commission does not represent or warrant that any such boring data accurately depicts the conditions to be encountered in constructing this project. A contractor assumes all risks it may encounter in basing its bid prices, time or schedule of performance on the boring data depicted here or those available from the district, or on any other documentation not expressly warranted, which the contractor may obtain from the Commission.

(E3.4) (Place on the Boring Data Sheet)

For location of borings see Sheet(s) No. .

Final clearance - Bridges over Railroads

(E3.5) In the general elevation detail, the vertical clearance dimension callout shall be the following asterisked note placed near the detail.

Final vertical clearance from top of rails to bottom of superstructure shall be (1) minimum. Track elevations should be verified in the field prior to construction to determine if the final vertical clearance shown will be obtained.

(1) Required clearance specified on the Bridge Memorandum.

Seal Course (Use the following notes when Seal Course is specified on the Design Layout.)

(E3.6)

Seal course is designed for a water elevation of .

(E3.7)

If the seal course is omitted, by the approval of the engineer, bottom of footing shall be placed at the elevation shown on the plans.

Bar placement in slabs (Notes E3.8 – E3.9)

Guidance Notes for Detailing: Indicate only the top longitudinal slab bars affected for tying the R4 barrier curb bar. It may be that only one bar needs to be indicated for shifting.

(E3.8) Use note with detail drawing indicating which bars are to be shifted.

F. Blank

G. Substructure Notes

G1. Concrete Bents

Expansion Device at End Bents (G1.1 and G1.1.1)

(G1.1)

Top of backwall for end Bents No. shall be formed to the crown and grade of the roadway. Backwall above upper construction joints shall not be poured until the superstructure slab has been poured in the adjacent span.

(G1.1.1)

All concrete above the upper construction joint in backwall shall be Class B-2.

Abutments with Flared Wings

(G1.2)

Longitudinal dimensions shown for bar spacing in the developed elevations are measured along front face of abutments.

Stub Bents (G1.3 and G1.4)

(G1.3)

Safety barrier curbs, parapetsandend post shall not be poured until the slab has been poured in the adjacent span.

(G1.4) Use when embedded in rock or on a footing.

Rock shall be excavated to provide at least 6" of earth under the beam and wings.

End Bents with Turned-Back Wings (G1.5 and G1.6)

(G1.5) Use for Non-Integral End Bents only.

Field bending shall be required when necessary at the wings for #-H bars in the backwalls for skewed structures and for #-F bars in the wings for the slope of the wing.

(G1.6) Add to sheet showing the typical section thru wing detail.

For reinforcement of the safety barrier curb, see Sheet No. (1).

(1) Use sheet number of the details of the safety barrier curb at end bents.

Integral End Bents (G1.7 thru G1.10)

(G1.7) Second F bar required for skewed bents.

The #6-Faand #6-F bars shall be bent in the field to clear beamsgirders.

(G1.7.1) Use for skewed bents. The #5-H bars are the approach slab anchorage (L shaped) bars embedded 12” (Min.) @ 90⁰ into the end bent. Modify note as needed when bent details are on multiple sheets.

The U bars, Pairs-V bars and #5-H bars shall be placed parallel to centerline of roadway.

(G1.8)

All concrete in the end bent above top of beam and below top of slab shall be Class B-2.

(G1.9) Use for P/S structures.

Strands at end of the girdersbeams shall be field bent or, if necessary, cut in field to maintain 1 1/2" minimum clearance to fill face of end bent.

(G1.10) Use for steel structures without steel diaphragms at end bents.

Concrete diaphragms at the integral end bents shall be poured a minimum of 12 hours before the slab is poured.

Semi-Deep Abutments (G1.11 thru G1.13) Place near the ground line and piling in abutment detail. This detail and notes can be placed with abutment details or near the foundation table.

(G1.11)

Earth within abutment shall not be above the ground line shown . Forms supporting the abutment slab may be left in place.

(G1.12)

The maximum variation of the head of the pile and the battered face of the pile from the position shown shall be no more than 2 inches.

(G1.13)

Exposed steel pilessteel pile shells within the abutment shall be coated with a heavy coating of an approved bituminous paint.

(G1.41) Use the following note when vertical column steel is hooked into the bent beam.

At the contractor's option, the hooks of V-Bars embedded in the beam cap may be oriented inward or outward for Seismic Category A. Bending the hook outward, away from the column core, is not allowed for Seismic Category B, C, or D.

(G1.42) Place the following note on plans when using Optional Section for Column-Web beam joints.

At the contractor's option, the details shown in optional Section __-__ may be used for column-web beam or tie beam at intermediate Bent No. . No additional payment will be made for this substitution.

(G1.43) Place the following note on plans when you have adjoining twin bridges.

Preformed compression joint seal shall be in accordance with Sec 717. Payment will be considered completely covered by the contract unit price for other items included in the contract.

All metal members of the anchorage system not embedded in concrete shall be cleaned and receive a heavy coating of an approved bituminous paint.

(G2.11)

Fine aggregate shall be in accordance with Sec 1005 and shall be placed below and above the rod and turnbuckles.

(G2.12)

Payment for all materials, excavation, backfill and any other incidental work necessary to complete the Deadman Anchorage Assembly will be considered completely covered by the contract unit price per each.

(G2.13)

Note: Reinforcing steel lengths are based on nominal lengths, out to out.

The minimum wall thickness of any spot or local area of any type shall not be more than 12.5% under the specified nominal wall thickness.

(G5a7)

Closure plate shall be required for tip of pipe pile and shall not project beyond the outside diameter of the pipe pile. Satisfactory weldments may be made by beveling tip end of pipe or by use of inside backing rings. In either case, proper gaps shall be used to obtain weld penetration full thickness of pipe. Payment for furnishing and installing closure plate will be considered completely covered by the contract unit price for Galvanized Cast-In-Place Concrete Piles.

(G5a8)

Splices of pipe for cast-in-place concrete pile shall be made watertight and to the full strength of the pipe above and below the splice to permit hard driving without damage. Pipe damaged during driving shall be replaced without cost to the state. Pipe sections used for splicing shall be at least 5 feet in length.

(G5a9)

At the contractor's option, the hooks of V-Bars embedded in the beam cap may be oriented inward or outward for Seismic Category A. Bending the hook outward, away from the pile core, is not preferred for Seismic Category B, C, or D.

(G5a10)

The hooks of V-Bars embedded in the pile cap footing should be oriented outward for all seismic categories.

The minimum wall thickness of any spot or local area of any type shall not be more than 12.5% under the specified nominal wall thickness.

(G5b6)

Splices of pipe for cast-in-place pipe pile shall be made watertight and to the full strength of the pipe above and below the splice to permit hard driving without damage. Pipe damaged during driving shall be replaced without cost to the state. Pipe sections used for splicing shall be at least 5 feet in length.

(G5b7)

At the contractor's option, the hooks of V-Bars embedded in the beam cap may be oriented inward or outward for Seismic Category A. Bending the hook outward, away from the pile core, is not preferred for Seismic Category B, C, or D.

(G5b8)

The hooks of V-Bars embedded in the pile cap footing should be oriented outward for all seismic categories.

G7. HP Pile

Galvanizing material shall be omitted or removed 1 inch clear of weld locations. See special provisions.

(G7.3) Use this note with Pile Seismic Anchor Detail – Galvanized.

Galvanizing ∠4x4, ¾” diameter high strength bolts, washers and nuts will not be required.

(G7.4) Use the following note on all plans where HP piles are anticipated to be driven to refusal on rock at any depth.

HP piles are anticipated to be driven to refusal on rock. Review all borings for depth of rock and restrict driving as appropriate to comply with hard rock driving criteria in accordance with Sec 702.

H. Superstructure Notes

H1. Steel

Plate Girders - (Shop welding)

(H1.1) To be used only with the permission of the Structural Project Manager.

By approval of the engineer, the contractor may omit any shop flange splice by extending the heavier flange plate and providing approved modifications of details at field flange splices and elsewhere as required. All cost of any required design, plan revisions or re-checking of shop drawings shall be borne by the contractor. Payweight in any case will be based on material shown on Design Plans.

Welded Shop Splices

(H1.1.1) Place near Welded Shop Splice Details.

Welded shop web and flange splices may be permitted when detailed on the shop drawings and approved by the engineer. No additional payment will be made for optional welded shop web and flange splices.

(H1.2) [MS Cell]

Weld to compression flange as located on the elevations of girder.

(H1.3) Add to note (H1.2), only when girders are built up with A514 or A517 steel flanges. Caution: Using this note means that these structural steels are already on the system. Any new construction using these structural steels requires permission of the State Bridge Engineer. Any construction involving these structural steels requires notification to the State Bridge Engineer.

Intermediate web stiffeners shall not be welded to plates of A514 or A517 steel.

Plate Girders with Camber

(H1.4) Place near the elevation of girder.

Plate girders shall be fabricated to be in accordance with the camber diagram shown on Sheet No. .

* Dimension (bottom of slab to top of web) may vary if the girder camber after erection differs from plan camber by more or less than the % of Dead Load Deflection due to weight of structural steel. No payment will be made for any adjustment in forming or additional concrete required for variation in haunching.

Note: Increase the haunch by 1/2"± more than what is required to make one size shear connector work for both the CIP and the SIP options.

Longitudinal web stiffeners shall be placed on the outside of exterior girders and on the side opposite of the transverse web stiffener plates for interior girders.

(H1.14)

Transverse web stiffeners shall be located as shown in the plan of structural steel.

(H1.15)

Intermediate web stiffener plate and diaphragm spacing may vary from plan dimensions by a maximum of 3" for diaphragm to connect to the intermediate web stiffener plate.

Wide Flange Beams - (Shop Welding)

(H1.16) To be used only with permission of the Structural Project Manager.

By approval of the engineer, the contractor may omit any shop splice by extending the heavier beam and providing an approved modification of details at the field splices. All costs of any required redesign, plan revisions or rechecking of shop drawings shall be borne by the contractor. Payweight in any case will be based on material shown on the design plans.

Shear Connectors

(H1.17) Use only when "Fabricated Structural …Steel… " is included as a pay item.

Weight of pounds of shear connectors is included in the weight of Fabricated Structural Steel.

(H1.18)

Shear connectors shall be in accordance with Sec 712, 1037 and 1080.

Notch Toughness for Wide Flange Beams

(Place an with all the beam sizes indicated on the "Plan of Structural Steel".)

(Place the following note near the "Plan of Structural Steel".)

(H1.19)

Notch toughness is required for all wide flange beams.

(Place an with the flange plate, pin plate or hanger bar size indicated on the "Detail of Flange Plates, Pin Plate Connection or Hanger Connection".)

Tangent Structures on Straight Grades (Details of Part-Longitudinal Sections at bents and at steel joints will be required on plans.)

Plan of Structural Steel and Elevation of Stringers or Girders

(H1.24)

Longitudinal dimensions are horizontal from centerline bearing to centerline bearing.

Oversized Holes for Intermediate Diaphragms

Place the following note near the intermediate diaphragm detail on all tangent wide flange and plate girder structures.

(H1.26)

At the contractor's option, holes in the diaphragm plate of non slab bearing diaphragms may be made 3/16" larger than the nominal diameter of the bolt. A hardened washer shall be used under the bolt head and nut when this option is used. Holes in the girder diaphragm connection plate or transverse web stiffener shall be standard size.

Slab drain attachment holes

Place the following note near the Elevation of Girder detail for plate girders or near the plan view for Wide Flange Beams when Slab Drains are used.

The 6 x 6 x 3/8 angle legs shall be adjusted to the variable angle between bearing stiffener and top flange created by girder tilt due to grade requirements.

(H1.42) Place the following note near the Plan of Structural Steel for all new bridges with staged construction or bridge widening projects.

Bolts for intermediate diaphragms and cross frames that connect girdersstringers under different construction staged slab pours shall be installed snug tight, then tightened after both adjacent slab pours are completed.

(H1.43) Place the following note on the staging sheet for all bridge redecking projects with staged construction.

Existing boltsrivets on intermediate diaphragms and cross frames that connect girdersstringers under different construction staged slab pours shall be removed and replaced with new in kind high strength bolts installed snug tight and in accordance with Sec 712. The high strength bolts shall be tightened after both adjacent slab pours are completed. Cost will be considered incidental to other pay items.

(H1.45) Place near detail B and optional detail B with cross frame diaphragms.

(*) At the contractor's option, rectangular fill plates may be used in lieu of diamond fill plates as shown in Optional Detail "B".

Deflection and Haunching: (Use for wide flange deck replacements.)

(H1.50)

The contractor shall determine dead load deflections and haunching based on field measurements and/or existing bridge plans and may be adjusted based on the difference between the new and existing dead load weights.

(H1.51)

Slab is to be considered at a uniform depth as shown on the plans. Haunching will vary.

(H1.52)

In order to properly form the haunches for the new deck, the contractor shall shoot deck elevations along each beam line prior to deck removal followed by shooting elevations of the tops of the beams after deck removal.

H2. Concrete

H2a. Continuous Slab

(H2a.1) Use for voided slabs

Tubes for producing voids shall have an outside diameter of and shall be anchored at not more than centers. Fiber tubes shall have a wall thickness of not less than .

The method and sequence of releasing the strands shall be shown on the shop drawings.

(H2b1.6)

Suitable anchorage devices for lifting panels may be cast in panels, provided the devices are shown on the shop drawings and approved by the engineer. Panel lengths shall be determined by the contractor and shown on the shop drawings.

(H2b1.7)

When squared end panels are used at skewed bents, the skewed portion shall be cast full depth. No separate payment will be made for additional concrete and reinforcing required.

(H2b1.8) References the P3 bars shown in the Plans of Panels.

Use #3-P3 bars if panel is skewed 45° or greater.

(H2b1.9)

All reinforcement other than prestressing strands shall be epoxy coated.

(H2b1.10) References the panel extension into the diaphragms shown in the Plan of Panels Placement.

End panels shall be dimensioned 1/2" min. to 1 1/2" max. from the inside face of diaphragm.

(H2b1.11) References the S-bars shown in the Plan of Panels Placement.

S-bars shown are bottom steel in slab between panels and used with squared and truncated end panels only.

(H2b1.12)

Cost of S-bars will be considered completely covered by the contract unit price for the slab.

(H2b1.13)

S-bars are not listed in the bill of reinforcing.

(H2b1.14) Place as fifth note under Joint Filler heading in the General Notes.

Joint filler shall be glued to the girderbeam. When thickness exceeds 1 1/2 inches, the joint filler shall be glued top and bottom. The glue used shall be the type recommended by the joint filler manufacturer.

(H2b1.15)

Precast panels may be in contact with stirrup reinforcing in diaphragms.

(H2b1.16) References the transverse S-bars extension into integral end bents shown in the Plan of Panels Placement.

Extend S-Bars 18 inches beyond the front face of end bents and int. bents for squared and truncated end panels only.

(H2b1.17) References the 3/8-inch diameter strands shown in the Plans of Panels.

Any strand 2'-0" or shorter shall have a #4 reinforcing bar on each side of it, centered between strands. Strands 2'-0" or shorter may then be debonded at the fabricator's option.

(H2b1.18)

Support from diaphragm forms is required under the optional skewed end until cast-in-place concrete has reached 3,000 psi compressive strength.

(H2b1.19) Place under the Bending Diagram for U1 Bar.

U1 Bars may be oriented at right angles to location and spacing shown. U1 Bars shall be placed between P1 Bars.

(H2b1.20) Place as last note under Joint Filler heading in the General Notes.

Edges of panels shall be uniformly seated on the joint filler before slab reinforcement is placed.

(H2b1.21)

Prestressed panels shall be brought to saturated surface-dry (SSD) condition just prior to the deck pour. There shall be no free standing water on the panels or in the area to be cast.

(H2b1.22)

The prestressed panel quantities are not included in the table of estimated quantities for the slab.

(H2b1.23) References the transverse S-bars extension beyond the edge of girder or beam shown in the Plan of Panels Placement.

Extend S-bars 9 inches beyond edge of girderbeam (Typ.).

(H2b1.24) References the panel overhang shown in Section A-A.

Contractor shall ensure proper consolidation under and between panels.

(H2b1.25) Place as first note under Joint Filler heading in the General Notes.

(H2b1.26) References the #3-P1 bars in the squared and truncated end panels only shown in the Plans of Squared Panel and Optional Truncated End Panel.

For end panels only, P1 bars shall be 2’-0” in length and embedded 12”. P1 bars will not be required for panels at squared integral end bents.

(H2b1.27) References the four #3-P2 bars required below the strands shown in the plans of panels and the section thru the panel.

#3-P2 bars near edge of panel at bottom (under strands).

(H2b1.28) References the bottom transverse slab bars shown in the section near the expansion gap. Not required if there is not an expansion gap on the bridge.

S-bars shown are used with skewed end panels, or squared end panels of squared structures only. The #5 S-bars shall extend the width of slab (2'-6" lap if necessary) or to within 3 inches of expansion device assemblies.

(H2b1.29) References #3-P1 bars required at expansion gaps shown in the Plan of Optional Skewed End Panel. Not required if there is not an expansion gap on the bridge.

P1 bars not required for integral bents.

(H2b1.30) References the min. steel reinforcement for openings in slab created by truncated end panels.

For truncated end panels, use a min. of #5-S bars at 6” crossings in openings, or min. 4x4-W7xW7.

H2b2. Additional Notes for Panels on Concrete Spans

(H2b2.1) Place as third note under Joint Filler heading in the General Notes.

Thicker material may be used on one or both sides of the girderbeam to reduce cast-in-place concrete thickness to within tolerances.

(H2b2.6) Place as fourth note under Joint Filler heading in the General Notes.

The same thickness of preformed fiber expansion joint material shall be used under any one edge of any panel except at locations where top flange thickness may be stepped. The maximum change in thickness between adjacent panels shall be 1/4 inch. The polystyrene bedding material may be cut with a transition to match haunch height above top of flange.

(H2b2.7) References the top flange thickness shown in Section A-A.

At the contractor's option, the variation in slab thickness over prestressed panels may be eliminated or reduced by increasing and varying the girderbeam top flange thickness. Dimensions shall be shown on the shop drawings.

Slab thickness over prestressed panels varies due to girderbeam camber. In order to maintain minimum slab thickness, it may be necessary to raise the grade uniformly throughout the structure. No payment will be made for additional labor or materials required for necessary grade adjustment.

(H2b2.10) Place as second note under Joint Filler heading in the General Notes.

Use Slab Haunching Diagram on Sheet No. __ for determining thickness of joint filler within the limits noted in the table of Joint Filler Dimensions.

H2b3. Additional Notes for Panels on Steel Spans

(H2b3.1) Place as third note under Joint Filler heading in the General Notes.

Thicker material shall be used on one or both sides of the girderbeam to reduce cast-in-place concrete thickness to within tolerances.

(H2b3.2) Place as fourth note under Joint Filler heading in the General Notes.

The same thickness of material shall be used under any one edge of any panel except at splices, and the maximum change in thickness between adjacent panels shall be 1/4 inch to correct for variations from GirderBeam Camber Diagram. The polystyrene bedding material may be cut to match haunch height above top of flange.

Adjustment in the slab thickness, joint filler, or grade will be necessary if the girderbeam camber after erection differs from plan camber by more than the % of dead load deflection due to the weight of structural steel. No payment will be made for additional labor or materials for the adjustment.

(H2b3.5) Place as second note under Joint Filler heading in the General Notes.

The thickness of the joint filler shall be adjusted to achieve the slab haunching dimension found on Sheet No. __. These adjustments shall be within the limits noted in the table of Joint Filler Dimensions.

Fabricator shall be responsible for location and design of lifting devices.

(H2c1.6) Use when the camber diagram is placed on another sheet.

For GirderBeam Camber Diagram, see Sheet No. __.

(H2c1.10) Use when steel intermediate diaphragms are present.

The 1 1/2"ø holes shall be cast in the web for steel intermediate diaphragms. Drilling is not allowed. For location of steel intermediate diaphragms, see Sheet No. __.

(H2c1.15) Use when slab drains are present. Use drain blockouts for double-tee girders, otherwise use coil inserts at slab drains.

For location of coil inserts at slab drainsdrain blockouts, see Sheet No. __.

(H2c1.20) Place under the elevation of the girder or beam when applicable. Use for all girders and beams except double-tee girders. Use second sentence with NU girders only. Use third sentence with box beam structures only.

Exterior and interior girdersbeams are the same, except for coil ties ,andcoil inserts for slab drainsandholes for steel intermediate diaphragmsand holes for #6 bar. Reinforcement support strands not shown for clarity. See Sheet No. __ for spacing of U1 and U2 bars.

(H2c1.25) Place near vent hole details for stream crossings only for girder structures. Use (one end only) for flat grades otherwise use upgrade.

Place vent holes at or near upgrade 1/3 point of girders (one end only) and clear reinforcing steel and strands by 1 1/2" minimum and steel intermediate diaphragms bolt connection by 6" minimum.

Place notes H2c1.35 thru H2c1.39 near the coil tie details. Double-Tee girders and adjacent beams do not use coil ties.

(H2c1.35) Use with end spans when both interior and exterior girders or beams are detailed on the same sheet and the 2’-6”long tie rod will not fit in the exterior diaphragm portion. Place *** at the end of the note specifying the centerlines of the coil tie rods.

Coil ties shall be held in place in the forms by slotted wire-setting-studs projecting thru forms. Studs are to be left in place or replaced with temporary plugs until girdersbeams are erected, then replaced by coil tie rods.

(H2c1.40) For girders only, place near Dimensions detail when the panel option is used except for NU-Girders. Place * at the top corners of the girder in the girder Dimensions detail. Use 1 1/2" to 1 3/4" for P/S I-Girders Type 2, 3 and 4 otherwise use 3" to 3 1/4".

Place notes H2c1.45 and H2c1.46 near the strand details at girder ends.

(H2c1.45) Use when the bottom strands are not all bent-up. Place ** at the end of the note specifying which strands are bent-up.

** At the contractor's option the location for bent-up strands may be varied from that shown for fully bonded strands only. The total number of bent-up strands shall not be changed. One strand tie bar is required for each layer of bent-up strands except at end bents which require one bar on the bottom layer of strands only. No additional payment will be made if additional strand tie bars are required.

(H2c1.46) Use with non-integral bents only. Adjust the details accordingly.

Prestressing strands at End Bents No. __ and __ and IntermediateBents No. and shall be trimmed to within 1/8 inch of concrete if exposed, or 1 inch of concrete if encased. Exposed ends of girders shall be given 2 coats of an asphalt paint. Ends of girders which will be encased in concrete diaphragms shall not be painted.

H2c2. Additional NU-Girder Notes

Place general notes H2c2.2 and H2c2.3 with H2c1 general notes where space allows.

(H2c2.2) Use for NU 35 and NU 43 only

The contractor shall provide bracing necessary for lateral and torsional stability of the girders during construction of the concrete slab and remove the bracing after the slab has attained 75% design strength. Contractor shall not drill holes in the girders. The cost for furnishing, installing, and removing bracing will be considered completely covered by the contract unit price for Prestressed Concrete NU-Girder.

(H2c2.3)

Alternate bar reinforcing steel details are provided and may be used. The same type of reinforcing steel shall be used for all girders in all spans.

(H2c2.10) Place near girder dimension detail when the panel option is used. Place * at the top corners of the girder in the girder dimensions detail.

* Girder top flange shall be steel troweled to a smooth finish for 8" at the edges, as shown. Apply two layers of 30-lb. roofing felt as a bond breaker to this region only excluding where joint filler is applied. The center portion shall be rough finished by scarifying the surface transversely with a wire brush, and no laitance shall remain on the surface.

H2c3. Additional Double-Tee Girder Notes

Place general notes H2c3.1 thru H2c3.6 with H2c1 general notes where space allows.

(H2c3.1)

Girders shall be handled and erected into position in a manner that will not impair the strength of the girder.

(H2c3.2)

The vertical face of the exterior girder that will be in contact with the slab shall be roughened by sand blasting, or other approved methods, to provide suitable bond between girder and slab.

(H2c3.3)

All exposed edges of concrete shall have a 1/2" radius or a 3/8" bevel, unless otherwise noted.

(H2c3.4)

Payment for edge block will be considered completely covered by the contract unit price for the double-tee girders.

(H2c3.5)

Provide lifting loops in each end of double-tee girder, located near center of stem, 2 feet from each end.

(H2c3.6)

Adequate reinforcing other than the specified welded wire fabric may be used with the approval of the engineer.

(H2c4.1) Place near strand arrangement detail when the panel option is used. Place * at the top corners of the beam in the strand arrangement detail.

* Beam top flange shall be steel troweled to a smooth finish for 9” at the edges, as shown. Apply two layers of 30-lb. roofing felt as a bond breaker to this region only excluding where joint filler is applied. The center portion shall be rough finished by scarifying the surface transversely with a wire brush, and no laitance shall remain on the surface.

(H2c4.3)

3/4”ø drain holes shall be provided at each end of each void, and shall be kept open at all times.

(H2c4.4)

Beams shall be kept upright at all times. Support shall be within 12 inches of the ends only.

(H2c4.5)

Void filler shall be non-absorptive cellular polystyrene, according to ASTM C 578, designed to withstand the forces imposed upon them during fabrication without substantial deformation such as bulging, sagging, or collapsing. Cardboard void filler will not be allowed. The outside dimensions of void filler shall be as shown on the plans. When two or more sections of void filler are used to make up a required length, they shall be effectively taped or spliced together.

(H2c4.6)

Beams shall be finished similarly in accordance with Sec 1029, except as noted.

(H2c6.10) Use for all girders and beams. Omit underline parts for double-tee girders and adjacent beams.

If girderbeam camber is different from that shown in the camber diagram, in order to maintain minimum slab thickness, an adjustment of the slab haunches, an increase in slab thickness or a raise in grade uniformly throughout the structure shall be necessary. No payment will be made for additional labor or materials required for variation in haunching, slab thickness or grade adjustment.

(H2c6.11) Use for all girders and beams except for double-tee girders and adjacent beams.

Concrete in the slab haunches is included in the Estimated Quantities for Slab on Concrete I-GirderBulb-Tee GirderNU-GirderBeam.

(H2c6.12) Use only for double-tee girders and adjacent beams.

Concrete in the slab overlay is included in the Estimated Quantities for Reinforced Concrete Slab Overlay.

(H2c6.13) Use only for double-tee girders and adjacent beams. Underline part only required when the slab thickness within parabolic crown is less than the minimum slab thickness. A = minimum slab thickness. B = slab thickness at crown centerline.

The slab is to be built parallel to grade and to a minimum thickness of A(Except varies from A to B within parabolic crown).

(H2c6.14) Use only if the camber diagram is located on the girder or beam sheet.

(**) Bolts shall be tightened to provide a tension of one-half that specified in Sec 712 for high strength bolt installation. A325 bolts may be substituted for and installed in accordance with the requirements for the specified A307 bolts.

(H2c7.3)

All diaphragm materials including bolts, nuts, and washers shall be galvanized.

Payment for furnishing and installing steel intermediate diaphragms will be considered completely covered by the contract unit price for Steel Intermediate Diaphragm for P/S Concrete Girders.

(H2c7.6)

Shop drawings will not be required for steel intermediate diaphragms and angle connections.

H2c8. Concrete Diaphragms at Intermediate Bents

(H2c8.1) Place near diaphragm details for all girders and beams except for double-tee girders at the following grades: 16” > 5%, 22” > 4% and 30” > 3%.

Diaphragms at intermediate bents shall be built vertical.

H3. Bearings

H3a. Type C & D

The following notes apply to Type C Bearings.

(H3.1)

Anchor bolts for Type C bearings shall be 1"ø ASTM F1554 Grade 55 swedged bolts, with no heads or nuts and shall extend 10" into the concrete. Swedging shall be 1" less than the extension into the concrete. Anchor bolts shall be set in the drilling holes or in the anchor bolt wells and grouted prior to the erection of steel. The top of anchor bolts shall be set approximately 1/4" below the top of bearing.

(H3.2)

Anchor bolts shall be coated with a minimum of two coats of inorganic zinc primer (5 mils minimum).

(H3.3)

Weight of the anchor bolts for the bearings are included in the weight of the Fabricated Structural Steel.

(H3.4) [MS Cell]

"" Indicates machine finish surface.

(H3.5)

Shop drawings are not required for the lead plates and the preformed fabric pads.

Weight of the anchor bolts, hardened washers and heavy hexagon nuts for bearings are included in the weight of the Fabricated Structural Steel.

(H3.18) [MS Cell]

"" Indicates machine finish surface.

(H3.19) [MS Cell]

bonded lubricant

(H3.20)

A lubricant coating shall be applied in the shop to both mating surfaces of the bearing assembly. The lubricant, method of cleaning, and application shall meet the requirements of MIL-L-23398 and MIL-L-46147. The coated areas shall be protected for shipping and erection.

(H3.21)

Shop drawings are not required for the lead plates and the preformed fabric pads.

The following note applies to Type E Bearings Modified.

(H3.22)

Place the heads of 3/4"ø bolts on the bottom side of the top bearing plate.

All structural steel for the anchor bolts and heavy hexagon nuts shall be coated with a minimum of two coats of inorganic zinc primer (5 mils minimum).

(H3.27)

Neoprene Elastomeric Pads shall be 6070 Durometer.

(H3.28)

Anchor bolts shall be at the centerline of slotted hole at 60°F. Bearing position shall be adjusted R for each 10° fall or rise in temperature at installation.

Use the following note when ASTM A709 Grade 50W steel is not used for superstructure.

(H3.29) Use grade per Design Comps.

Structural steel for sole plate shall be ASTM A709 Grade 3650 and shall be coated with a minimum of two coats of inorganic zinc primer (5 mils minimum). The stainless steel plate shall be protected from any coating.

Use the following note when ASTM A709 Grade 50W steel is used for superstructure.

PTFE surface shall be fabricated as a single piece. Splicing will not be permitted.

(H3.32)

Stopper plates and straps shall be provided to prevent loss of support due to creeping of PTFE bearings. Payment for fabricating and installing the stopper plates and straps will be considered completely covered by the contract unit price for Type N PTFE Bearing.

(H3.33)

The bottom face of the 1/8" stainless steel plate that is welded to the sole plate shall be lubricated with a lubricant that is approved by the bearing manufacturer.

Material for bearing shall be carbon steel castings and will be considered completely covered by the contract unit price for Carbon Steel Castings. Pins, anchor bolts, heavy hexagon nuts, pipe and rolled steel bearing plates will be considered completely covered by the contract unit price for Structural Carbon Steel.

(H3.78)

Shop drawings are not required for the lead plates and the preformed fabric pads.

H4. Conduit System

(H4.1)

Cost of furnishing and placing anchor bolts for light standard will be considered completely covered by the contract unit price for other items.

(H4.2) Use for all conduits, except if encased in concrete, 3 in. minimum cover is not possible in slab.

Shift reinforcing steel in field where necessary to clear conduit and junction boxes.

(H4.4)

Light standards, wiring and fixtures shall be furnished and installed by others.

(H4.5)

Top of light standard supports shall be made horizontal; anchor bolts shall be placed vertically.

(H4.6)

For details of light standards,underdeck lighting,and wiring, see electrical plans.

(H4.7) Use for conduits to be encased in concrete at open, closed or filled joints. Use 150°F, 120°F for steel superstructure. Use 120°F, 110°F for concrete superstructure. Modify note to include giving the total expansion movement per expansion fitting if multiple fittings are used and movement is different, and delineate fittings on plans.

Expansion fittings shall be placed as shown and set in accordance with the manufacturer's requirements and based on the air temperature at the time of setting given an estimated total expansion movement of inches at open jointsand inches at filled joints using a maximum temperature range of 150120°F and a maximum temperature of 120110°F.

(H4.7.1) Use for conduits not to be encased in concrete and for structures with open or closed joints in the superstructure.

Expansion fittings shall be placed as shown and set in accordance with the manufacturer's requirements and based on the air temperature at the time of setting given an estimated total expansion movement of inches at open jointsand inches at closed joints using a maximum temperature range of 110°F. Additional expansion fittings beyond what is specified on the bridge plans shall be provided and placed in accordance with the conduit manufacturer’s recommendations.

(H.4.7.2) Use for conduits not to be encased in concrete and for structures without open or closed joints in the superstructure.

Additional expansion fittings beyond what is specified on the bridge plans shall be provided and placed in accordance with the conduit manufacturer’s recommendations.

(H4.8) Use "surface" mounting, except adjacent to sidewalks, where mounting box on existing concrete. Use "flush" mounting where box is to be encased in concrete.

All end bent and safety barrier curb junction boxes shall be PVC molded in accordance with Sec 1062 and designed for flushsurface mounting. The conduit terminations shall be permanent or separable. The terminations and covers shall be of watertight construction and shall meet requirements for NEMA 4 enclosure.

(H4.8.1) Use for all junction boxes to be encased in concrete at the roadway face of the safety barrier curb.

Placement of junction boxes and covers, complete in place, shall be flush with the roadway face of the safety barrier curb. Junction boxes and covers may be recessed up to ¼”.

(H4.9) Use for all conduits not to be encased in concrete.

Weep holes shall be provided at low points or other critical locations to drain any moisture in the conduit system. Conduit shall be sloped to drain.

(H4.9.1) Use for all conduits to be encased in concrete.

Drainage shall be provided at low points or other critical locations of all conduits and all junction boxes in accordance with Sec 707. All conduits shall be sloped to drain where possible.

(H4.10) Use for conduit not encased in concrete.

All conduits shall be secured to concrete with nonmetallic clamps at about 5'-0" cts. Concrete anchors for clamps shall be in accordance with Federal Specification FF-S-325, Group II, Type 4, Class I and shall be galvanized in accordance with ASTM A153, B695-91 Class 50 or stainless steel. Minimum embedment in concrete shall be 1 3/4". The supplier shall furnish a manufacturer's certification that the concrete anchors meet the required material and galvanizing specifications.

(H4.11) Use for junction box.

Junction box size shown on plan may require special order. No other size may be substituted.

(H4.12)

MoDOT Construction Personnel: Indicate in field and on bridge plans for future work the exact location of buried conduit at ends of bridge that are capped and not immediately used.

(H4.13) Use for payment of Conduit System.

Payment for furnishing and installing Conduit System, complete in place, will be considered completely covered by the contract lump sum price for Conduit System on Structure.

H5. Expansion Devices

H5a. Finger Plate

(H5.1) For stage construction or other special cases, see Structural Project Manager.

Finger plate shall be cut with a machine guided gas torch from one plate. The plate from which fingers are cut may be spliced before fingers are cut. The surface of cut shall be perpendicular to the surface of plate. The cut shall not exceed 1/8" in width. The centerline of cut shall not deviate more than 1/16" from the position of centerline of cut shown. No splicing of finger plate or finger plate assembly will be allowed after fingers are cut. The expansion device shall be fabricated and installed to the crown and grade of the roadway.

(H5.2)

Plan dimensions are based on installation at 60°F. The expansion gap and other dimensions shall be increased or decreased " for each 10° fall or rise in temperature at installation.

(H5.3)

Material for the expansion device shall be ASTM A709 Grade 36 structural steel. Anchors for the expansion device shall be in accordance with Sec 1037.

(H5.4)

Structural steel for the expansion device and curb plate shall be coated with a minimum of two coats of inorganic zinc primer (5 mils minimum) or galvanized in accordance with ASTM A123. Anchors need not be protected from overspray.

(H5.5)

Payment for furnishing, coating or galvanizing and installing the structural steel for the expansion device will be considered completely covered by the contract unit price for Expansion Device (Finger Plate) per linear foot.

All holes shown for connections to be subpunched 11/16"ø (shop or field drill) and reamed to 13/16"ø in field.

(H5.8) Place note near "Plan of Slab".

"the web of W14 x 43" is for steel structures

"the 3/4" vertical mounting plate" is for P/S structures.

Longitudinal reinforcing steel shall be placed so that ends shall not be more than ±1" from the web of W14 x 43andthe 3/4" vertical mounting plate at the expansion device.

(H5.9)

Complete joint penetration welds utilized in the fabrication of the expansion device shall be nondestructively tested by an approved method.

(H5.10)

Curb plate anchors shall be a drilled cone expansion or a cast-in-place wing type threaded insert. The minimum ultimate pullout capacity for these anchors shall be 2700 lbs in f'c = 4000 psi concrete. Lead anchors will not be permitted. Holes in the barrier curb for anchors shall not be drilled until the concrete is at least 7 days old.

H5b. Flat Plate

(H5.16)

Expansion device shall be fabricated in one section, except for stage construction and when the length is over 50 feet. A complete joint penetration groove welded splice shall be required. Welds shall be ground flush to provide a smooth surface. The expansion device shall be fabricated and installed to the crown and grade of the roadway.

(H5.17)

Plan dimensions are based on installation at 60°F. The expansion gap and other dimensions shall be increased or decreased " for each 10° fall or rise in temperature at installation.

(H5.18)

Material for the expansion device shall be ASTM A709 Grade 36 structural steel. Anchors for the expansion device shall be in accordance with Sec 1037.

(H5.19)

Structural steel for the expansion device and curb plate shall be coated with a minimum of two coats of inorganic zinc primer (5 mils minimum) or galvanized in accordance with ASTM A123. Anchors need not be protected from overspray.

(H5.20)

Payment for furnishing, coating or galvanizing and installing the structural steel for the expansion device will be considered completely covered by the contract unit price for Expansion Device (Flat Plate) per linear foot.

(H5.21)

Concrete shall be forced under and around the flat plate, anchors and angles. Proper consolidation shall be achieved by localized internal vibration. Finishing of the concrete shall be achieved by hand finishing within one foot of the expansion device. The vertical and horizontal concrete vent holes shall be offset from each other. Do not alternate holes at the 12" spacing.

(H5.22) Use this note when expansion device is at an end bent.

Bevel plates shall be used at end bents when the grade of the slab at the expansion device is 3% or more.

(H5.23) Place this note near "Plan of Slab".

Longitudinal reinforcing steel shall be placed so that ends shall not be more than ±1" from vertical plateandthe vertical leg of the angle at the expansion device.

(H5.24)

Complete joint penetration welds utilized in the fabrication of the expansion device shall be nondestructively tested by an approved method.

(H5.25)

Curb plate anchors shall be a drilled cone expansion or a cast-in-place wing type threaded insert. The minimum ultimate pullout capacity for these anchors shall be 2700 lbs in f'c = 4000 psi concrete. Lead anchors will not be permitted. Holes in the barrier curb for anchors shall not be drilled until the concrete is at least 7 days old.

H5c. Preformed Compression Joint Seal

(H5.31)

Expansion joint system shall be fabricated in one section, except for stage construction and when the length is over 50 feet. A complete joint penetration groove welded splice shall be required. Welds shall be ground flush to provide a smooth surface. The expansion joint system shall be fabricated and installed to the crown and grade of the roadway.

(H5.32)

Plan dimensions are based on installation at 60°F. The expansion gap and other dimensions shall be increased or decreased " for each 10° fall or rise in temperature at installation.

(H5.33)

Structural steel for the expansion joint system shall be ASTM A709 Grade 36. Anchors for the expansion joint system shall be in accordance with Sec 1037. Preformed compression seal expansion joint system shall be in accordance with Sec 717.

(H5.34)

Structural steel for the expansion joint system shall be coated with a minimum of two coats of inorganic zinc primer (5 mils minimum) or galvanized in accordance with ASTM A123. Anchors need not be protected from overspray.

(H5.35)

Concrete shall be forced under armor angle and around anchors. Proper consolidation of the concrete shall be achieved by localized internal vibration.

(H5.36) Place this note near "Plan of Slab".

Longitudinal reinforcing steel shall be placed so that ends shall not be more than ±1" from vertical leg of angle at the expansion joint system.

Place the following notes near the "Tables of Transverse Bridge Seal Dimensions".

(H5.38) [MS Cell]

Size of armor angle: Vertical leg of angle shall be a minimum of + 3/4". Horizontal leg of angle shall be a minimum of 3". Minimum thickness of angle shall be 1/2".

(H5.39)

If a seal size larger than that indicated on the plans is used, the movement range, the opening at 60° and all dimensions for the armor angles shall be shown on the shop drawings.

H5d. Strip Seal

(H5.46)

Expansion joint system shall be fabricated in one section, except for stage construction and when the length is over 50 feet. A complete joint penetration groove welded splice shall be required. Welds shall be ground flush to provide a smooth surface. The expansion joint system shall be fabricated and installed to the crown and grade of the roadway.

The strip seal gland shall be installed in joints in one continuous piece without field splices. Factory splicing will be permitted for joints in excess of 53 feet.

(H5.47)

Plan dimensions are based on installation at 60°F. The expansion gap and other dimensions shall be increased or decreased " for each 10° fall or rise in temperature at installation.

(H5.48)

Structural steel for the expansion joint system shall be ASTM A709 Grade 36 except the steel armor may be ASTM A709 Grade 50W. Anchors for the expansion joint system shall be in accordance with Sec 1037. Strip seal expansion joint system shall be in accordance with Sec 717.

(H5.49)

Structural steel for the expansion joint system shall be coated with a minimum of two coats of inorganic zinc primer (5 mils minimum) or galvanized in accordance with ASTM A123. Anchors need not be protected from overspray.

(H5.50)

Concrete shall be forced under and around steel armor and anchors. Proper consolidation of the concrete shall be achieved by localized internal vibration.

(H5.51) Place this note near "Plan of Slab".

Longitudinal reinforcing steel shall be placed so that ends shall not be more than ±1" from vertical leg of the steel armor at the expansion joint system.

(H5.53) Use note with polymer concrete next to strip seal.

Polymer concrete shall be in accordance with Sec 623.

H6. Pouring and Finishing Concrete Slabs

I-Beam, Plate Girder Bridges - Continuous Slabs

(H6.1)

The contractor shall pour and satisfactorily finish the slab pours at the rate given. Retarder, if used, shall be an approved type and retard the set of concrete to 2.5 hours.

Prestressed Concrete Structures - Continuous Spans

(H6.4)

The contractor shall furnish an approved retarder to retard the set of the concrete to 2.5 hours and shall pour and satisfactorily finish the slab pours at the rate given.

(H6.5)

End diaphragms at expansion devices may be poured with a construction joint between the diaphragm and slab, or monolithic with the slab.

(H6.6) Omit integral end bents with non-integral end bents and intermediate bents with single spans. Make bents singular if applicable.

The concrete diaphragm at the intermediate bentsand integralend bents shall be poured a minimum of 30 minutes and a maximum of 2 hours before the slab is poured.

Prestressed Double-Tee Concrete Structures

(H6.9)

The diaphragms at the intermediate and end bents shall be poured a minimum of 30 minutes and a maximum of 2 hours before the slab is poured across the diaphragm at bents.

(H6.10)

The contractor shall furnish an approved retarder to retard the set of the concrete to 2.5 hours and shall pour and satisfactorily finish the slab pours at not less than 25 cubic yards per hour.

The contractor shall furnish an approved retarder to retard the set of the concrete to 2.5 hours and shall pour and satisfactorily finish the roadway slab at a rate of not less than (*) cubic yards per hour. The contractor shall observe the transverse construction joints shown on the plans, unless the contractor is equipped to pour and satisfactorily finish the roadway slab at a rate which permits a continuous pouring through some or all joints as approved by the engineer.

Steel and Prestressed Structures - Simple Spans

(H6.15)

The contractor shall pour and satisfactorily finish the roadway slab at a rate of not less than 25 cubic yards per hour.

Widen, Extension, Repair, and Stage Construction

(H6.17) Underline part not required when forms stay-in-place permanently. Place note on the plans when the closure pour is specified on the design layout.

Expansive Class B-2 concrete shall be used in the closure pour. Forms shall be released before the closure pour.

All Structures with Longitudinal Construction Joints

(H6.18) The following note shall be used on all structures with slabs wider than 54' containing a longitudinal construction joint. The blank space shall be replaced by the value corresponding to the total roadway width divided by the larger pour width when the construction joint is used.

The longitudinal construction joint may be omitted with the approval of the engineer. When the longitudinal construction joint is omitted, the minimum rate of pour for alternate pouring sequences shall be increased by a factor of ____.

Wide Flange Deck Replacements

(H6.20)

The contractor shall provide bracing necessary for lateral and torsional stability of the beams during construction of the concrete slab and remove the bracing after the slab has attained 75% design strength. Contractor shall not weld on or drill holes in the beams. The cost for furnishing, installing, and removing bracing will be considered completely covered by the contract unit price for Slab on Steel.

(H6.21)

Slab shall be poured upgrade from end to end at a minimum rate of 25 cubic yards per hour.

(H6.22)

Alternate pour sequences may be submitted to the engineer for approval. Keyed construction joints shall be provided between pours.

H7. Slab Drains (Notes for Bridge Standard Drawings)

When steel slab drains are used place Notes H7.1, H7.1.3 and H7.21 under the heading of Notes for Steel Drain. Place remaining notes thru Note H7.11 under the heading of General Notes.

(H7.1)

Slab drains may be fabricated of either 1/4" welded sheets of ASTM A709 Grade 36 steel or from 1/4" structural steel tubing ASTM A500 or A501.

(H7.1.1) Note not required for continuous concrete slab bridges.

Slab drain bracket assembly shall be ASTM A709 Grade 36 steel.

(H7.1.3) Use underlined portion with a wearing surface.

The drains Pieces A and B shall be galvanized in accordance with ASTM A123.

(H7.2) Use first choice without a wearing surface and second choice with a wearing surface.

(H7.11) Bolts is plural for Prestressed box and slab beams that require two bolts.

The bolts required to attach the slab drain bracket assembly to the prestressed girder webbeam shall be supplied by the prestressed girderbeam fabricator.

Use Notes H7.13 thru H7.21 when fiberglass reinforced polymer (FRP) slab drains are used. Place Note H7.13 as the first note under the heading of General Notes. Place remaining notes under the heading of Notes for FRP Drain.

(H7.13)

Contractor shall have the option to construct either steel or FRP slab drains. All drains shall be of same type.

(H7.14)

Drains shall be machine filament-wound thermosetting resin tubing meeting the requirements of ASTM D2996 with the following exceptions:

The resin used shall be ultraviolet (UV) resistant and/or have UV inhibitors mixed throughout. Drains may have an exterior coating for additional UV resistance.

(H7.18)

The color of the slab drain shall be gray (Federal Standard 26373). The color shall be uniform throughout the resin and any coating used.

(H7.19)

The combination of materials used in the manufacture of the drains shall be tested for UV resistance in accordance with ASTM D4239 Cycle A. The representative material shall withstand at least 500 hours of testing with only minor discoloration and without any physical deterioration. The contractor shall furnish the results of the required ultraviolet testing prior to acceptance of the slab drains.

(H7.20)

At the contractor’s option, drains may be field cut. The method of cutting FRP slab drains shall be as recommended by the manufacturer to ensure a smooth, chip free cut.

(H7.21) Use only for angled drains.

Both upper and lower drain pieces shall be rigidly connected to each other. Drain flow shall not be obstructed. Approval of the engineer is required.

H8. Blank

H9. Thrie Beam and Other Rail Types

(H9.1a) Use for all W-Beam, Thrie Beam, Two Tube and Single Tube (Low Profile) Structural Steel Guardrails without cap rail. (See Guardrail Delineation.) (See Note H10.7.1 Guidance for using Part Note for Delineation Sheeting Requirements.)

Guardrail delineators shall be attached to the top of the guardrail post using galvanized anchorage as shown on Missouri Standard Plan 606.00 and in accordance with Sec 606. Delineators on bridges with two-lane, two-way traffic shall have retroreflective sheeting on both sides. Guardrail delineators will be considered completely covered by the contract unit price for Bridge Guardrail (W-Beam), Bridge Guardrail (Thrie Beam), Bridge Rail (Two Tube Structural Steel), Low Profile Metal Bridge Rail (Single Tube).

(H9.1b) Use for all W-Beam and Thrie Beam Guardrails with cap rail. (See Guardrail Delineation.) (See Note H10.7.1 Guidance for using Part Note for Delineation Sheeting Requirements.)

Guardrail delineators shall be attached to the top of the guardrail and shall similarly use the delineator details of Missouri Standard Plan 617.10, except that the delineator body shall be attached to the top of the cap rail using galvanized anchorage as shown on Missouri Standard Plan 606.00. Delineators on bridges with two-lane, two-way traffic shall have retroreflective sheeting on both sides. Guardrail delineators will be considered completely covered by the contract unit price for Bridge Guardrail (W-Beam), Bridge Guardrail (Thrie Beam).

(H9.2)

Panel lengths of channel members shall be attached continuously to a minimum of four posts and a maximum of six posts (except at end bents).

(H9.3)

All bolts, nuts, washers, plates, reinforcement and elastomeric materials will be considered completely covered by the contract unit price for BridgeGuardrail (W-Beam)Bridge Guardrail (Thrie Beam)other items.

(H9.4) Use underline part for temporary bridges.

All steel connecting bolts and fasteners for posts and railing, and all anchor bolts, nuts, washers and plates shall be galvanized after fabrication except for bottom plate. Protective coating and material requirement of steel railing shall be in accordance with Sec 1040.

(H9.5) Use post instead of blockout for temporary bridges.

Rail posts shall be set perpendicular to roadway profile grade, vertically in cross section and aligned in accordance with Sec 713 except that the rail posts shall be aligned by the use of shims such that the post deviates not more than 1/2 inch from true horizontal alignment after final adjustment. The shims shall be 3" x 1 3/4" and placed between the blockoutpost and the thrie beam rail. The thickness of the shims shall be determined by the contractor and verified by the engineer before ordering material for this work.

(H9.6) Use only when a base plate is used.

Rail posts shall be seated on elastomeric pads having the same dimensions as the post base plate and 1/16" thickness. Such pads may be any elastomeric material, plain or fibered, having hardness (Durometer) of 50 or above, as certified by the manufacturer. Additional pads or half pads may be used in shimming for alignment. Post heights shown will increase by the thickness of the pad.

(H9.7)

At the expansion slots in the thrie beam rails and channels, the bolts shall be tightened and backed off one-half turn and the threads shall be burred.

(H9.8)

At the thrie beam connection to blockout on wings, the bolts shall be tightened and backed off one-half turn and the threads shall be burred.

(H9.13) Use for placement or replacement of end treatment with thrie beam rail.

Cost for providing holes for new guardrail attachment will be considered completely covered by the contract unit price for other items.

(H9.15) Use post instead of blockout for temporary bridges.

Washers shall be used at all post bolts between the bolt head and beam. The flat washers shall be rectangular in shape, 3" x 1 3/4" x 3/16" minimum and with a 11/16" x 1" slot, or when necessary of such design as to fit the contour of the beam. A 3" x 1 3/4" x 5/8" rectangular washer shall be used between the blockoutpost and the thrie beam rail.

(H9.16)

Special drilling of the thrie beam may be required at the splices. All drilling details shall be shown on the shop drawings.

(H9.17)

Fabrication of structural steel shall be in accordance with Sec 1080.

(H9.18) Do not use with prestress double-tee or temporary bridge structures.

Expansion splices in the thrie beam rail shall be made at either the first or second post on either side of the joint and on structure at bridge ends. When the splice is made at the second post, an expansion slot shall be provided in the thrie beam rail for connection to the first post to allow for movement.

(H9.19) Do not use with prestressed double-tee or temporary bridge structures.

In addition to the expansion provisions at the expansion joints, expansion splices in the thrie beam rail and the channel shall be provided at other locations so that the maximum length without expansion provisions does not exceed 200 ft.

Do not use any of the following notes for temporary bridges.

(H9.20) Use with prestress double-tee structures.

Expansion splices in the thrie beam rail and the channel shall be provided at locations so that the maximum length without expansion provisions does not exceed 200 ft.

(H9.21)

Shim plates 6" x 6" x 1/16" may be used between the top of the post and the channel member as required for vertical alignment.

(H9.22)

See slab sheet for rail post spacing.

(H9.23)

See Missouri Standard Plans 606.00 for details not shown.

(H9.24)

Bolt shall not be bent in slab depths greater than 14", use 12" straight embeddment.

(H9.25)

Shim plates 6" x 3" x 1/16" may be used between post W6x20 and 1/2" bent plate connection as required for horizontal alignment.

Use the following notes where required and with temporary bridges thrie beam sheet.

(H9.30)

Note deleted.

(H9.31)

If type "A" guardrail is not attached to ends of the temporary structure, flared ends shall be required. The existing thrie beam rails shall be modified to accept flared ends. Cost for furnishing and installing flared ends will be considered completely covered by the contract unit price for other items.

(H9.32)

Contractor shall verify all dimensions in field before ordering materials.

(H9.33)

See preceding sheet for rail post spacing.

(H9.34)

At the bridge ends for head to head traffic, guardrail shall be used at all four corners and for single directional traffic, guardrail shall be used at the entrance ends only unless required at the exit.

The size of the base and bottom plate may be increased depending on which grid option is used.

(H9.37)

Optional welding of the post to the base plate, in lieu of the weld shown, is a 5/16" fillet weld all around, including the edges of the post flanges.

(H9.38)

Semi-circular notches centered on the axis of the post web ends may be made to facilitate galvanizing.

(H9.39) Use for all Thrie Beam Guardrails on temporary bridges. (See Note H10.7.1 Guidance for using Part Note for Delineation Sheeting Requirements.)

Guardrail delineators shall be attached to the top of the bridge guardrail and shall similarly use the delineator details of Missouri Standard Plan 617.10, except that the delineator body shall be attached to the top of the cap rail using galvanized anchorage as shown on Missouri Standard Plan 606.00. Delineators on bridges with two-lane, two-way traffic shall have retroreflective sheeting on both sides. Cost of supplying and installing new delineators will be considered completely covered by other pay items. Delineators shall be stored with bridge guardrail after use.

H10. Barrier Curbs

H10a. Safety, Median, Type C & D

The following notes shall be placed in the General Notes on the elevation sheet of the cast-in-place forming details.

Measurement of safety(Type D) barrier curb is to the nearest linear foot for each structure, measured along the outside top of slab from end of wing to end of wing.

(H10.6) Use for safety barrier curb or barrier curb (Type D) not ending over wing walls (two separate curbs used as a median or when wings are flared).

Measurement of safety barrier curb (Type D) is to the nearest linear foot for each structure, measured along the outside top of slab from end of slab to end of slabMeasurement of median barrier curb transition (Type C) is to the nearest linear foot for each structure measured along the top of slab at centerline median from centerline sleeper slab to end of slab.

(H10.7) Use for median barrier curb and median barrier curb (Type C).

Measurement of median barrier curb (Type C) is to the nearest linear foot for each structure, measured along the top of slab at centerline median from end of slab to end of slabcenterline sleeper slab to centerline sleeper slab.

Below is additional guidance for using Part Note for Delineation Sheeting Requirements:

Bridges with two-lane, two-way traffic shall have retroreflective sheeting on both sides of the delineators. For two-lane, one-way traffic, retroreflective sheeting may be on one side only unless crossroad or entranceway traffic is just beyond exit to bridge and wrong way driving is to be discouraged with retroreflective sheeting on both sides of the delineators, (white and red in this case). "Delineators on bridges with two-lane, two-way traffic shall have retroreflective sheeting on both sides" may be modified, as required. For median barrier curbs, retroreflective sheeting should be used on both sides of the delineators where there is not more than four lanes divided.

On bridges with more than two lanes, retroreflective sheeting is not required on both sides of the delineators. The perception of a narrowing roadway at the bridge is of lesser consequence in terms of requiring guidance devices and does not warrant retroreflective sheeting on both sides of the delineators. "Delineators on bridges with two-lane, two-way traffic shall have retroreflective sheeting on both sides" may be removed at the discretion of the design team.

H10b. Slip Form Option

Use the following notes with the slip form option, including H10.1, H10.2, H10.3, H10.4, H10.5 or H10.6 or H10.7, and H10.7.1.

Add #5 crisscross bars for slip-form option. Base the length of these bars on the shortest distance between joints and use typically on each side of joints throughout structure.

(H10.81) Use underline portion for median barriers.

Joint sealant and backer rods shall be used on all slip-form barrier curbs instead of joint filler and shall be in accordance with Sec 717 for silicone joint sealant for saw cut and formed joints (except at end of slab of the end bents).

(H10.82)

Plastic waterstop shall not be used with slip-form option.

(H10.83)

For slip-form option, all sides of the safetymedian barrier curb (Type C)(Type D) shall have a vertically broomed finish and the curb top shall have a transversely broomed finish.

(H10.85)

Cost of silicone joint sealant and backer rod, complete in place, will be considered completely covered by the contract unit price for SafetyMedian Barrier Curb (Type C)(Type D).

H10c. Temporary

(H10.90)

Method of attachment for the Type F temporary barrier shall be the tie-down strapbolt through deck.

Cost of plastic waterstop, complete in place, will be considered completely covered by the contract unit price for SafetyBarrier Curb(Type D).

Sign Supports

(H11.5)

Payment for furnishing and placing anchor bolts for sign supports will be considered completely covered by the contract unit price for other items.

(H11.6)

Payment for furnishing and erecting approximately pounds of steel for sign supports will be considered completely covered by the contract lump sum price for Fabricated Sign Support Brackets.

Plan of Slab: All Structures

(H11.8)

Longitudinal slab dimensions are measured horizontally.

Pedestrian Guard Fence (Chain Link Type): General Notes

(H11.10)

Pedestrian guard fence (Chain link type) shall be in accordance with Sec 1043 except all fabric shall have the top and bottom edges knuckled.

(H11.11)

All posts shall be vertical. Grout of 1/2" minimum thickness shall be placed under floor plates to provide for vertical alignment of posts.

(H11.12)

Payment for furnishing, galvanizing and erecting the fence and frame complete with anchor bolts and washers will be considered completely covered by the contract unit price for (72 in.) Pedestrian Fence (Structures) per linear foot.

(H11.13)

Dimensions of pedestrian guard fence are measured horizontally.

(H11.14)

The maximum spacing allowed between pull post and end posts is 100 ft. Post brace and 1/2" Ø truss rod are required for panels adjacent to pull post and end posts only.

(H11.15)

Connect the lower end of the 1/2" Ø truss rod to the bottom of the pull posts and end posts to which the stretcher bar is attached.

(H11.16)

(112 in.) Curved Top Pedestrian Fence (Structures) will be measured to the nearest linear foot for each structure measured along the bottom outside edge of the sidewalkcurb from to .

(H11.17)

Core wire size for wire fabric shall be 6 gage minimum.

(H11.19) Use for ornamental pedestrian fencing.

The design live load for pedestrian railings shall be in accordance with AASHTO LRFD Bridge Design Specifications except that a uniform load of 50 lb/ft and a concentrated load of 200 lb need not be applied simultaneously. The posts of pedestrian fencing will require both loadings applied simultaneously.

Sidewalks

(H11.20)

All exposed edges of sidewalk shall have either a 1/2" radius or a 3/8" bevel, unless otherwise noted.

(H11.21)

Payment for all concrete and reinforcement, complete in place, will be considered completely covered by the contract unit price for Sidewalk (Bridges) per sq. foot.

(H11.22)

Concrete in the sidewalk shall be Class B-2.

(H11.23)

Measurement of the sidewalk is to the nearest square foot for each structure, measured horizontally from the outside face of safety barrier curb to the outside edge of sidewalk and from end of slab to end of slab.

I. Revised Structures Notes

I1. General

(I1.1)

Outline of old work is indicated by light dashed lines. Heavy lines indicate new work.

(I1.2)

Contractor shall verify all dimensions in field before ordering new material.

(I1.3)

Bars bonded in old concrete not removed shall be cleanly stripped and embedded into new concrete where possible. If length is available, old bars shall extend into new concrete at least 40 diameters for plain bars and 30 diameters for deformed bars, unless otherwise noted.

Use the following notes where a broken concrete surface has no new concrete against it. Use bituminous paint below ground line and qualified special mortar above ground line.

(I1.4)

The area exposed by the removal of concrete and not covered with new concrete shall be coated with an approved bituminous paintqualified special mortar in accordance with Sec 704.

Joint shall be cleaned per the manufacturers recommendations. Cost of Concrete and Asphalt Joint Sealer and Backer Rod will be considered completely covered by contract unit price per other items included in the contract.

In order to maintain grade and a minimum thickness of overlay as shown on plans it may be necessary to use additional quantities of overlay at various locations throughout the structure. The cost of furnishing and installing the overlay will be considered completely covered in the contract unit price, including all additional labor, materials or equipment for variations in thickness of overlay.

(l1.11) Use note for only epoxy polymer concrete overlay.

The contractor shall exercise care to ensure spillage over joint edges is prevented and that a neat line is obtained along any terminating edge of the epoxy polymer concrete.

(l1.12) Use note only with preventive maintenance jobs.

Concrete for repairing concrete deck shall be a qualified special mortar in accordance with Sec 704 instead of the Class B-2 or B-1 concrete.

(I1.13) [MS Cell] Use the following table and notes with alternate concrete wearing surfaces.

The contractor shall select one of the alternate concrete wearing surfaceslisted in the table. The alternate concrete wearing surface method ofmeasurement and basis of payment shall be in accordance with Sec 505.

Removal and Storage of Existing Bridge Rails

(I1.20)

The existing bridge rails and posts shall be stored at a location as designated by the engineer on the MoDOT Maintenance Lot at .

Extension of Box Culverts

(I1.41)

Bottom of top slab, top of bottom slab, and inside faces of walls shall be built flush with the old structure.

(I1.42)

Bottom of new slab shall be built flush with the bottom of slab of the old box and the height of walls varied as necessary to extend the walls into rock as specified.

Making End Bents Integral

(I1.51)

The exposed and accessible surfaces of the existing structural steel and bearings that will be encased in concrete shall be cleaned with a minimum of SSPC-SP-3 surface preparation and coated with a minimum of one coat of gray epoxy-mastic primer (non-aluminum) in accordance with Sec 1081 to produce a dry film thickness of not less than 3 mils before concrete is poured. The surface preparation and coating for girders shall extend a minimum of one foot outside the face of the girder encasement. Payment for cleaning and coating steel to be encased in concrete will be considered completely covered by the contract unit price for Class B-2 ConcreteSlab on Steel.

(I1.52)

The ___ bars are segmented for ease of placement through girder web holes. The total bar length for ___ bars shown in Bill of Reinforcing Steel allows for one lap splice with a length of ___. Actual bar segment lengths to be determined by contractor for ease of installing bars. The contractor may use a mechanical bar splice in lieu of a lap splice. When a mechanical bar splice is used, the actual bar segment length will be determined by the contractor to accommodate manufacturer's recommendations for installation and ease of construction. The cost of furnishing and installing the bar splices will be considered completely covered by the contract unit price for Reinforcing Steel. No adjustment of the quantity of reinforcing steel will be allowed for the use of mechanical bar splices.

(I1.53)

Cost of field drilling holes in existing plate girderwide flange beam webs will be considered completely covered by the contract unit price for Class B-2 ConcreteSlab on Steel.

Curb Block-Out

(I1.60)

7/8"ø Threaded Rods with nuts and washers shall be used in place of 7/8"ø Bolts (ASTM A307).

(I1.61)

1"ø holes shall be drilled through existing end post for placement of 7/8"ø threaded rods, nuts, and washers.

Widening

(I1.62)

Dimensions:

Longitudinal dimensions are based on the original design plans.

(I1.64)

Stringer Support:

All existing stringers in the span being strengthened shall be raised simultaneously at jacking point and supported during welding of new steel plates.

(I1.65)

The temporary supports must be capable of safely supporting a service load of approximately tons per stringer (factor of safety not included) (see Special Provisions).

(I1.70) Use note for redecks or in other cases where the rock blanket elevations are not shown on the bridge plans and the top of the rock blanket is required to be flush to the existing ground line in accordance with the Memorandum of Agreement with SEMA.

The top of rock blanket shall be flush to the ground line as directed by the engineer. (Roadway Item)

I2. Resin & Cone Anchors

Use Resin Anchors unless concrete depths are insufficient.

(I2.1)

The contractor shall use one of the qualified resin anchor systems in accordance with Sec 1039.

(I2.2) * Pay item in which resin anchor system is embedded.

Cost of furnishing and installing the resin anchor systems, complete in place, will be considered completely covered by the contract unit price for *.

(I2.3)

The minimum embedment depth in concrete with f'c = 4,000 psi for the resin anchor systems shall be that required to meet the minimum ultimate pullout strength in accordance with Sec 1039 but shall not be less than 5".

Note to designer:A minimum factor of safety of 2 should be used when determining the number of anchors to be used.

(I2.4)(Use when reinforcing steel is substituted for the threaded rod stud.)

I3. Special Repair Zones

(I3.1)

Any half-soling required in the areas designated as special repair zones shall be completed in alphabetical sequence. Any repair in the remainder of the bridge that is adjacent to Zone A and not designated as a special repair zone shall be completed prior to work in Zone A.

(I3.2)

Removal and repair shall be completed in one special repair zone and concrete shall have attained a compressive strength of 3200 psi before work can be started in the next special repair zone. Before placing concrete in areas adjacent to areas of subsequent repair, the concrete shall be separated with a material such as polyethylene sheets to aid in removal of old concrete.

(I3.5) Use for structures with multiple column bents.

Zones with the same letter designation may be repaired at the same time.

(I3.6) Use for structures with single column bents.

Zones with the same letter designation may be repaired at the same time except for the zones directly adjacent to the centerline of bent. If either of the zones adjacent to centerline of bent has a single repair area of over 10 square feet or a total repair area of over 20 square feet, that zone shall be repaired before removing concrete in the other zone of the same designation at that bent.

(I3.10) Use for voided or solid slab structures.

If any single repair area does not exceed 4 square feet in size and the total repair within a special repair zone does not exceed 12 square feet, the special repair zone requirement does not apply for that zone. Any damage sustained to the void tube as a result of the contractor's operations shall be patched or replaced as required by the engineer at the contractor's expense.

(I3.11) Use for voided slab structures.

An exposed void in the deck shall be patched as approved by the engineer in a manner that shall maintain the void area completely free of concrete. Cost of patching an exposed void will be considered completely covered by the contract unit price for Repairing Concrete Deck (Half-Soling).

(I3.12) Use for voided slab structures.

When a deteriorated portion of the void tube is beyond the point of patching as determined by the engineer, the portion of the deteriorated void tube shall be replaced. The void area shall be maintained completely free of concrete. Cutting of the longitudinal reinforcing steel will not be permitted. The fiber tubes for producing the voids shall have an outside diameter with the wall thickness the same as the existing tubes and anchored at not more than the original spacing. Cost of replacing the void tube will be considered completely covered by the contract unit price for Deck Repair with Void Tube Replacement.

Use following notes for box and deck girder structures.

(I3.16)

Total width of full depth repair shall not exceed 1/3 of the deck width at one time. For any area of deck repair that extends over a concrete girder and is more than 18 inches in length along the girder, the concrete removal shall stop at the centerline of girder and repair completed in this area. Prior to continuing work in this area, the concrete shall have attained a compressive strength of 3200 psi. No traffic shall be permitted over the girder that is undergoing repair.

(I3.17)

When the full depth repair extends over a diaphragm or girder and the deteriorated concrete extends into the diaphragm or girder, all deteriorated concrete shall be removed and replaced as full depth repair. Concrete in girders shall not be removed below the deck haunch of the girder without prior review and approval from the engineer.

Use following notes for box girder structures.

(I3.20)

Interior falsework installed by the contractor resting on the bottom slab shall be removed where entry access is available.

(I3.21)

If any single repair area does not exceed 9 square feet in size and the total repair within a special repair zone does not exceed 27 square feet, the special repair zone requirement does not apply for that zone. Half-soling repair in the special repair zone, on either side of the intermediate bents, shall be to a depth that will not expose half the diameter of the longitudinal reinforcing bar. Full depth repair shall be made when removal of deteriorated concrete exposes half or more of the diameter of the longitudinal reinforcing bar.

J. MSE Wall Notes (Notes for Bridge Standard Drawings)

J1. General

(J1.1)

Factor of safety shall be 2.0 for overturning and 1.5 for sliding.

(J1.2)

The cost of joint filler and joint seal, complete in place, will be considered completely covered by the contract unit price for Concrete Traffic Barrier (Type AD). See Roadway Plans.

(J1.3)

For seismic design the factor of safety shall be 1.5 for overturning and 1.1 for sliding.

A filter cloth meeting the requirements for a Separation Geotextile material shall be placed between the select granular backfill for structural systems and the backfill being retained by the mechanically stabilized earth wall system.

(J1.13)

Coping shall be required on this structure unless a small block system is used. Bond breaker (roofing felt or other approved alternate) between wall panel and coping required if coping is cast in place.

(J1.13a)

Wall contractor shall show the following items on the design drawings and/or on the fabricator shop drawings.

1. Leveling pad horizontal.

2. Leveling pad length and step elevations shall be based on wall manufacture’s recommendation. Top of leveling pad elevations shall not be higher than theoretical top of leveling pad elevations shown on these plans.

For Battered Small Block Walls

(J1.14)

The top and bottom elevations are given for a vertical wall. If a battered small block wall system is used, the height of the wall shall be adjusted as necessary to fit the ground slope and the concrete leveling pad shall be adjusted as necessary to account for the wall batter. If a fence is built on an extended gutter, then the height of the wall shall be adjusted further.

The baseline of the wall shown is for a vertical wall. If a battered wall system is used, this baseline shall correspond to Elevation .

For Walls Near Bridge Abutments (Responsibility of Bridge Division)

(J1.15)

The contractor shall be solely responsible to coordinate construction of the wall with bridge and roadway construction and ensure that the bridge and roadway construction, resulting or existing obstructions, shall not impact the construction or performance of the wall. Soil reinforcement shall be designed and placed to avoid damage by pile driving, guardrail post installation, utility and sign foundations. (See Roadway and Bridge plans.)

PREQUALIFIED MSE WALL SYSTEMS

(J1.16) [MS Cell]

MSE Wall Systems Data Table

Proprietary WallSystems

Combination Wall Systems

Manufacturer

System

Facing UnitManufacturer

FacingUnit

GeogridManufacturer

Geogrid

MSE Wall Systems Data Table is to be completed by MoDOT construction personnel to record the manufacturer of the proprietary wall system or the manufacturers of thecombination wall system that was used for constructing the MSE wall.

(J1.17) Use for all large block walls or if small block walls are to be built vertical.

The MSE wall system shall be built vertical.

(J1.18) Use where only a small or large block wall shall be used. Do not use note where either a small or large block may be used.

The MSE wall system shall be a smalllarge block wall system.

(J1.19)

Topmost layer of reinforcement shall be fully covered with select granular backfill for structural systems, as approved by the wall manufacturer, before placement of the Separation Geotextile.

Adjustment in the vertical alignment of the drainage pipes from that depicted in the plans may be necessary to ensure positive flow out of the drainage system.

Outlet ends of pipes shall be located to avoid clogging or flow into the drainage system.

(J1.20a)

Select granular backfill shall extend a minimum of 12" beyond the end of all soil reinforcement. Where the angle, Ɵ, between the retained backfill excavation/fill line and the horizontal is less than 90°, the wedge area backfill between Ɵ and 90° shall be filled with select granular backfill for structural systems meeting the requirements of Section 1010.

- For Ɵ ≤ (45°+ Фb/2), contractor shall have the option to use properties for select granular backfill, Фr, or better aggregate material, Фw for active force computations in the wedge area backfill. For active force computations, the angle of internal friction for wedge area backfill material, Фr or Фw, shall be limited to 34° unless determined otherwise in accordance with Section 1010. If Фr or Фw > 34° is desired for wedge area backfill then test report shall be submitted with manufacturer's design plans. Фr or Фw shall not be greater than 40°. Final configuration of this option shall be sent to Geotechnical Section for a new overall global stability analysis. Design Фw shall be shown on manufacturer's plans if used.

The slope excavation line shall be benched and separation geotextile shall be placed between the retained backfill and either select granular backfill or better aggregate material, and between the select granular backfill and better aggregate material.

Show range of acceptable theta (Ɵ) angle on shop drawings which must be consistent with design computations and proposed construction of wall. Coordination between wall designer (manufacturer) and contractor is required before shop drawing submittal.

(J1.21) Use for all large block walls.

Inverted U-shape reinforced capstone may be used in lieu of coping. Panel dowels for capstone shall be required and as provided by manufacturer.

(J1.22)

The MSE wall system shall be built in accordance with Sec 720.

(J1.23) Use for MSE Walls when there may be contact between dissimilar metals.

All steel soil reinforcements shall be separated from other metallic elements by at least 3 inches.

(J1.24) Use for MSE Walls when there may be vertical obstructions in reinforced soil mass.

The splay angle should be less than 15° and tensile capacity of splayed reinforcement shall be reduced by the cosine of the splay angle.

No reinforcement shall be left unconnected to the wall face or arbitrarily cut/bent in the field to avoid the obstruction.

Where interference between the vertical obstruction and the soil reinforcement is unavoidable, the design of the wall near the obstruction may be modified using one of the alternatives in FHWA-NHI-10-24, Section 5.4.2. Show detail layout on the drawings. For wall designs with horizontal obstructions in reinforced soil mass, see FHWA-NHI-10-024, Section 5.4.3.

(J1.25)

The allowable bearing pressure for unimproved ground _____ ksf.

The allowable bearing pressure for improved ground _____ ksf.

(The allowable bearing pressure shall be determined by the Geotechnical Section and reported on the Foundation Investigation Geotechnical Report.)

For Small Block Walls

(J1.26) Permanent shims for Small block MSE wall:

Shims will be sparingly allowed to maintain horizontal and vertical control. The preferable shim shall be made of a plastic material that will not rust, stain, rot or leach onto the concrete and has a minimum compressive strength equal to block wall unit. Steel or wood shims will not be allowed. Shims shall not exceed 3/16” in thickness and shall distribute load in order to not induce stress into block wall units. No shim shall be used between the concrete leveling pad and the base course of the block wall.

(J1.27)

Holes shall be 5/8” round and extend 4” into the third layer of blocks, recessed 2” deep by 1 1/2" round.

(J1.28)

Rods or reinforcing bars shall be secured by an approved resin anchor system in accordance with Sec 1039.

(J1.29)

Recess hole shall be backfilled with non-shrink cement grout.

(J1.30) Use for all MSE wall plans.

Excavation quantities and pay items are given on the roadway plans. Excavation quantities are based on a soil reinforcement length of __ ft. The soil reinforcement length may very based upon the wall design selected by the contractor. Plan excavation quantities will be paid regardless of any actual quantities removed based on the soil reinforcement length and design selected.

Payment for furnishing all materials, labor and excavation necessary to construct the approach slab, including the timber header, sleeper slab, underdrain, Type 5 aggregate base, joint filler and all other appurtenances and incidental work as shown on this sheet, complete in place, will be considered completely covered by the contract unit price for Bridge Approach Slab (Major Road) per sq. yard.

Payment for furnishing all materials, labor and excavation necessary to construct the concrete bridge approach slab, including the timber header, underdrain, Type 5 aggregate base, joint filler and all other appurtenances and incidental work as shown on this sheet, complete in place, will be considered completely covered by the contract unit price for Bridge Approach Slab (Minor Road) per sq. yard.

K1.14b) Use for Bridge Approach Slab (Minor Road) – Asphalt Slab Only

Payment for furnishing all materials, curb, labor and excavation necessary to construct the concrete asphalt bridge approach slab, including curb, underdrain, Type 5 aggregate base within the pay limits shown, complete in place, will be considered completely covered by the contract unit price for Bridge Approach Slab (Minor Road) per sq. yard.